Abstract Toxoplasma gondii and Neospora caninum are two closely related protozoans that infect a wide range of animals, including birds. However, the occurrence of N. caninum and T. gondii in seabirds is unknown. Therefore, this study aimed to determine the presence of T. gondii and N. caninum DNA in tissue samples of seabirds. Tissue samples of the pectoral muscles, heart, and brain were collected from 47 birds along the coastline of Santa Catarina State, SC, Brazil. The DNA was extracted from the tissues and screened using nested-PCR (nPCR) targeting internal transcribed spacer 1 (ITS1). T. gondii DNA was detected in tissues from seven seabirds (7/47, 14.8%), kelp gull (Larus dominicanus) (5/21), and Manx shearwater (Puffinus puffinus) (2/8). N. caninum DNA was detected in tissues of nine seabirds (9/47, 19.1%), the kelp gull (L. dominicanus) (4/21), Manx shearwater (P. puffinus) (2/8), neotropic cormorant (Phalacrocorax brasilianus) (1/4), brown booby (Sula leucogaster) (1/5), and white-chinned petrel (Procellaria aequinoctialis) (1/1); however, no co-infection was observed. In conclusion, this study showed the circulation of N. caninum and T. gondii in seabirds along the coastline of Santa Catarina State. Further studies are required to clarify the role of these birds in the epidemiology of neosporosis and toxoplasmosis. animals However N T unknown Therefore muscles heart 4 State SC Brazil nestedPCR nested PCR nPCR (nPCR ITS1. ITS1 ITS . (ITS1) 7/47, 747 7 (7/47 14.8%, 148 14.8% , 14 8 14.8%) Larus dominicanus 5/21, 521 5/21 5 21 (5/21) Puffinus puffinus 2/8. 28 2/8 2 (2/8) 9/47, 947 9 (9/47 19.1%, 191 19.1% 19 19.1%) L. L (L 4/21, 421 4/21 (4/21) P. P (P 2/8, Phalacrocorax brasilianus 1/4, 1/4 (1/4) Sula leucogaster 1/5, 15 1/5 (1/5) whitechinned white chinned Procellaria aequinoctialis 1/1 11 (1/1) however coinfection co infection observed conclusion toxoplasmosis (ITS1 7/47 74 (7/4 14.8 52 5/2 (5/21 2/ (2/8 9/47 94 (9/4 19.1 42 4/2 (4/21 1/ (1/4 (1/5 (1/1 (ITS 7/4 (7/ 14. 5/ (5/2 (2/ 9/4 (9/ 19. 4/ (4/2 (1/ 7/ (7 (5/ (2 9/ (9 (4/ (1 ( (5 (4

Resumo Toxoplasma gondii e Neospora caninum são dois protozoários intimamente relacionados que infectam uma ampla gama de animais, incluindo-se aves. Entretanto, a ocorrência de N. caninum e T. gondii em aves marinhas é desconhecida. Portanto, este estudo objetivou determinar a presença de DNA de T. gondii e N. caninum em amostras de tecidos, coletadas de 47 aves marinhas. Amostras de tecidos dos músculos peitorais, coração e cérebro foram coletadas de 47 aves marinhas mortas ao longo da costa do estado de Santa Catarina, SC, Brasil. O DNA foi extraído dos tecidos e testado, usando-se a reação em cadeia da polimerase nested (nPCR), tendo em vista o espaçador interno transcrito 1 (ITS1). O DNA de T. gondii foi detectado em tecidos de sete aves marinhas (7/47, 14,8%), como gaivota (Larus dominicanus) (5/21) e bobo-pequeno (Puffinus puffinus) (2/8). O DNA de N. caninum foi detectado em tecidos de nove aves marinhas (9/47, 19,1%); gaivota (L. dominicanus) (4/21), bobo-pequeno (P. puffinus) (2/8), corvo-marinho (Phalacrocorax brasilianus) 1/4), atobá-pardo (Sula leucogaster) (1/5), e pardela-preta (Procellaria aequinoctialis) (1/1). No entanto, não foi observada coinfecção. Em conclusão, este estudo demonstrou a circulação de N. caninum e T. gondii em aves marinhas ao longo da costa de Santa Catarina, Brasil. Mais estudos são necessários para esclarecer o papel dessas aves na epidemiologia da neosporose e da toxoplasmose. animais incluindose incluindo se Entretanto N T desconhecida Portanto 4 peitorais Catarina SC Brasil testado usandose usando nPCR, nPCR , (nPCR) ITS1. ITS1 ITS . (ITS1) 7/47, 747 7 (7/47 14,8%, 148 14,8% 14 8 14,8%) Larus dominicanus 5/21 521 5 21 (5/21 bobopequeno bobo pequeno Puffinus puffinus 2/8. 28 2/8 2 (2/8) 9/47, 947 9 (9/47 19,1% 191 19 19,1%) L. L (L 4/21, 421 4/21 (4/21) P. P (P 2/8, corvomarinho corvo marinho Phalacrocorax brasilianus 1/4, 1/4 1/4) atobápardo atobá pardo Sula leucogaster 1/5, 15 1/5 (1/5) pardelapreta pardela preta Procellaria aequinoctialis 1/1. 11 1/1 (1/1) entanto coinfecção conclusão toxoplasmose (nPCR (ITS1 7/47 74 (7/4 14,8 5/2 52 (5/2 2/ (2/8 9/47 94 (9/4 19,1 42 4/2 (4/21 1/ (1/5 (1/1 (ITS 7/4 (7/ 14, 5/ (5/ (2/ 9/4 (9/ 19, 4/ (4/2 (1/ 7/ (7 (5 (2 9/ (9 (4/ (1 ( (4

Abstract The COVID-19 pandemic led to a reduction in human mobility, known as “anthropause.” Few studies have compared birds’ community patterns between lockdown and “new normal” periods, especially in extremophile environments. This study presents the first baseline by monitoring coastal birds on 10 beaches along the largest hypersaline lagoon in South America. The birds were counted in September and October 2021 (during a lockdown period) and in October 2022 (after the lockdown – “new normal”) during the morning. The continuous route transect methodology was applied by the same observer in all beaches. The Analysis of Covariance (ANCOVA) was used to investigate the response of community abundance to urbanization (raster-based variable) and time of COVID-19 pandemic (lockdown vs. new normal). Rarefaction curve and Permutational Analysis of Variance (PERMANOVA) were used to compare community richness and composition, respectively, between lockdown and new normal periods. Generalized Linear Models (GLM) with negative binomial distribution were applied to test the effect of the same predictors on the three more abundant species. The bird community structure and composition did not change when comparing lockdown and new normal periods, mainly due to dominance of synanthropic species. Among species-specific responses to lockdown, the Southern Lapwing Vanellus chilensis was more abundant during the lockdown on six of the nine beaches where it occurred. Oppositely, the Kelp Gull Larus dominicanus and the Neotropic Cormorant Nannopterum brasilianus were more abundant in new normal period, reinforcing that these species benefit from human subsidies. This may provide a unique opportunity for science-based sustainable ecotourism activities in urban areas with synanthropic species, capitalizing activities such as birdwatching, that would certainly contribute to environmental education actions. COVID19 COVID 19 COVID-1 mobility anthropause. anthropause “anthropause. periods environments 1 America 202 period after morning ANCOVA (ANCOVA rasterbased raster based variable vs normal. . normal) PERMANOVA (PERMANOVA respectively GLM (GLM speciesspecific specific occurred Oppositely subsidies sciencebased science birdwatching actions COVID1 COVID- “anthropause 20 2

ABSTRACT The Paranaguá Estuarine Complex (PEC) is internationally recognized for its economic, social, and environmental relevance. It is designated as a World Heritage site and part of selected wetland areas that protect and conserve biodiversity, especially waterbirds. However, it has historically been under pressure from human activities, and the information about waterbirds that use the region is fragmented. Thus, with this study, we sought to establish a baseline for the waterbirds using the bays of the PEC, considering aspects such as species richness, abundance, and conservation status. On board a boat, we conducted monthly surveys from March 2020 to February 2021 along 36 transects equally distributed among the three main bays of the PEC. We recorded 46 species distributed across 17 families and eight orders. The order Charadriiformes displayed the highest number of species, totaling 19. Among them, the Neotropic Cormorant, identified as Nannopterum brasilianum, stood out with the highest number of occurrences. Furthermore, we documented eight migratory species from the Northern Hemisphere, including Calidris pussilla, the Semipalmated Sandpiper, considered near threatened by the International Union for Conservation of Nature Red List. Additionally, we observed seven other species classified under some threat of extinction. Our results revealed that the PEC harbors a rich and diverse assemblage of waterbirds consisting of resident and migratory species, many of which are at some risk of population decline. Therefore, we reinforce the importance of continuous monitoring in the region, which can serve as a basis for public policies, supporting management and conservation strategies focused on waterbirds and the wetlands on which they depend. (PEC economic social relevance biodiversity However activities fragmented Thus study richness abundance status boat 202 3 4 1 orders 19 them Cormorant brasilianum occurrences Furthermore Hemisphere pussilla Sandpiper List Additionally extinction decline Therefore policies depend 20 2

Resumo: Um dos impactos ambientais mais comuns que tem causado efeitos irreversíveis nos ecossistemas é a introdução de espécies exóticas. Além dos desastres ecológicos que podem ser provocados, como o declínio e a extinção de espécies nativas, este fenómeno pode gerar perdas económicas significativas e a possibilidade de propagação de parasitas que são transmitidos por estas espécies exóticas. Esses processos podem ser acentuados pelas mudanças climáticas, que ao longo do tempo alteram o padrão de distribuição global das espécies afetadas, gerando casos de sobreposição de nicho com espécies que compartilham nichos semelhantes. Nesse sentido, o conhecimento sobre as áreas com possível ocorrência dessas espécies pode direcionar as medidas de monitoramento e controle. Neste estudo, desenvolvemos modelos de previsão atuais e futuros para identificar áreas de adequabilidade na região Neotropical para Melanoides tuberculata (Müller, 1774) e nove espécies de moluscos nativos do continente americano, utilizando a ferramenta de modelagem de nicho ecológico. Além disso, avaliamos a sobreposição de nicho ecológico entre a espécie invasora e as espécies nativas de moluscos de água doce para verificar se os efeitos das mudanças climáticas alterariam a distribuição desses organismos. Para a elaboração dos modelos de predição, foram adotados os seguintes procedimentos metodológicos: registros de ocorrência dos moluscos em diferentes bases de dados e busca de dados ambientais para condições climáticas em cenários atuais e futuros no WorldClim 2.0 (SSP2-4.5 e SSP2-8.5). Além disso, foram realizados procedimentos de modelagem utilizando sete pacotes do software R, avaliação dos modelos utilizando a métrica True Skill Statistic (TSS), construção de mapas e quantificação e sobreposição de nicho ecológico das espécies incluídas na análise. Os resultados indicaram que várias áreas da região Neotropical são adequadas para a ocorrência de M. tuberculata nos cenários atuais. Além disso, as áreas adequadas para a sua ocorrência serão provavelmente alargadas em ambos os cenários futuros. Para as espécies nativas, houve diferenças significativas em relação às áreas de aptidão, com uma redução para algumas espécies. Testes de similaridade de nicho indicaram sobreposição significativa apenas entre M. tuberculata e o planorbídeo Biomphalaria straminea (Dunker, 1848). Verificamos que a expansão de M. tuberculata pode ter consequências negativas, incluindo a redução de espécies nativas de gastrópodes e a disseminação de trematódeos de importância médica e veterinária que este molusco pode transmitir. Resumo exóticas provocados afetadas semelhantes sentido controle estudo Müller, Müller (Müller 1774 americano disso organismos predição metodológicos 20 2 0 2. SSP24.5 SSP245 SSP SSP2 4.5 4 5 (SSP2-4. SSP28.5. SSP285 8.5 . 8 SSP2-8.5) R TSS, TSS , (TSS) análise M aptidão Dunker, Dunker (Dunker 1848. 1848 1848) negativas transmitir 177 SSP24 SSP24. 45 4. (SSP2-4 SSP28 SSP28.5 85 8. SSP2-8.5 (TSS 184 17 (SSP2- SSP28. SSP2-8. 18 1 (SSP2 SSP2-8 (SSP SSP2-

Abstract: One of the most common environmental impacts that has caused irreversible effects on ecosystems is the introduction of exotic species. In addition to the ecological disasters that can be caused, such as the decline and extinction of native species, this phenomenon can generate significant economic losses and the possibility of the spread of parasites that are transmitted by these exotic species. These processes can be accentuated by climate change, which over time alters the global distribution pattern of the affected species, generating cases of niche overlap with species that share similar niches. In this sense, the knowledge about the areas with possible occurrence these species can direct the monitoring and control measures. In this study, we developed current and future prediction models to identify areas of suitability in the Neotropics for Melanoides tuberculata (Müller, 1774) and nine species of mollusks native to the American continent using the ecological niche modeling tool. In addition, we evaluated the ecological niche overlap between the invasive species and the native species of freshwater mollusks to verify whether the effects of climate change would alter the distribution of these organisms. The following methodological procedures were adopted to prepare the forecasting models: records of occurrence of the mollusks in different databases and search of environmental data for climate conditions in current and future scenarios in WorldClim 2.0 (SSP2-4.5 and SSP2-8.5). Besides, modeling procedures using seven packages of R software, evaluation of the models using the true skill statistic (TSS) metric, construction of maps and quantification and overlapping of ecological niche of the species included in the analysis. The results indicated that several areas of the Neotropics are suitable for the occurrence of M. tuberculata in the current scenarios. Moreover, the suitable areas for its occurrence will probably be expanded in both future scenarios. For native species, there were significant differences in relation to the areas of suitability, with a reduction for some species. Niche similarity tests indicated significant overlap only between M. tuberculata and the planorbid Biomphalaria straminea (Dunker, 1848). We discuss that the expansion of M. tuberculata can have negative consequences, including the reduction of native gastropod species and the spread of trematodes of medical and veterinary importance that this mollusk can transmit. Abstract niches sense measures study Müller, Müller (Müller 1774 tool organisms 20 2 0 2. SSP24.5 SSP245 SSP SSP2 4.5 4 5 (SSP2-4. SSP28.5. SSP285 8.5 . 8 SSP2-8.5) Besides software TSS (TSS metric analysis M Moreover Dunker, Dunker (Dunker 1848. 1848 1848) consequences transmit 177 SSP24 SSP24. 45 4. (SSP2-4 SSP28 SSP28.5 85 8. SSP2-8.5 184 17 (SSP2- SSP28. SSP2-8. 18 1 (SSP2 SSP2-8 (SSP SSP2-

[Objective] Our main objective was to evaluate Favolus rugulosus indoor production in different substrates and to analyze the proximal composition of cultivated basidiomata. [Methodology] The studied species was identified by morphological and phylogenetic analyses based on ITS markers. Domestication capability was evaluated in different easy-access substrates. Total phenolic content and antioxidant activities were quantified, and proximal content was analyzed on cultivated basidiomata. [Results] Eucalypts sawdust-straw mixture produced basidiomata in higher yields in an intermediate amount of time (45 days). The highest concentration of phenolic compounds (35.6 ± 2.6 mg GAE g-1) and antioxidants (13.6 ± 1.3 mg AAE g-1) were obtained in the ethyl acetate fraction. Regarding proximal composition, F. rugulosus is composed of 20 % proteins, 15,4 % carbohydrates, 25,2 % dietary fiber and 5,7 % fat. [Conclusions] Nutritional composition analyses on cultivated basidiomata revealed F. rugulosus to be high in protein, carbohydrates, dietary fiber and essential fatty acids.

[Objetivo] El objetivo del trabajo fue evaluar la producción indoor de Favolus rugulosus en distintos sustratos y realizar los análisis de composición proximal de los basidiomas cultivados. [Metodología] La especie en estudio fue identificada por análisis morfológicos y filogenéticos basados en el marcador ITS. Se evaluó la capacidad de domesticación de la especie mediante el cultivo en distintos sustratos de fácil acceso, se cuantificó el contenido de compuestos fenólicos totales, antioxidantes y se realizó el análisis proximal de los basidiomas obtenidos. [Resultados] La mezcla eucalipto-paja resultó ser el mejor sustrato para la producción de basidiomas, por producir rindes más altos en un tiempo intermedio (45 días); la mayor concentración de compuestos fenólicos (35.6 ± 2.6 mg GAE g-1) y antioxidantes (13.6 ± 1.3 mg AAE g-1) se obtuvo en la fracción de acetato de etilo; en cuanto la composición proximal, F. rugulosus contiene 20 % proteínas, 15,4 % carbohidratos, 25,2 % fibra alimentaria y 5,7 % de grasas. [Conclusiones] Los análisis de composición química y nutricional del basidioma cultivado revelan que F. rugulosus es una fuente rica en  proteínas, carbohidratos, fibra alimentaria y ácidos grasos esenciales. 

The description of the new species for Brazil, Cheilolejeunea savannae L.P. Macedo, Ilk.-Borg. amp; C.J. Bastos, raised the need to review many specimens previously identified as Cheilolejeunea intertexta (Lindenb.) Steph., aiming to refine the concept of this species and its real distribution in Brazil. The present study also resulted in the reinstatement of Cheilolejeunea compacta (Steph.) M.E. Reiner previously considered synonymous with C. intertexta, as a distinct taxon. It also showed that C. savannae has a wider distribution in Brazil and especially in the State of Bahia, compared to C. intertexta and C. compacta. Descriptions and a key to the separation of the three species recognized here are presented.

A descrição da nova espécie para o Brasil, Cheilolejeunea savannae L.P. Macedo, Ilk.-Borg. amp; C.J. Bastos, suscitou a necessidade de rever muitos espécimes identificados previamente como Cheilolejeunea intertexta (Lindenb.) Steph., objetivando o refinamento do conceito desta espécie e a sua real distribuição no Brasil. O presente estudo também resultou no restabelecimento de Cheilolejeunea compacta (Steph.) M.E. Reiner, previamente considerada como sinônimo de C. intertexta, como táxon distinto. Foi demonstrado, também, que C. savannae tem distribuição mais ampla no Brasil e especialmente no Estado da Bahia, comparativamente à C. intertexta e C. compacta. Descrições e uma chave para a separação das três espécies aqui reconhecidas são apresentadas.

Resumen El género Epanycles Butler (Lepidoptera: Erebidae: Arctiinae: Ctenuchina) ha sido considerado como monotípico desde hace 145 años, incluyendo solo a Epanycles imperialis (Walker). En base a datos de morfología externa, morfología de los genitales de machos y hembras, estudios de filogenia morfológica, información molecular de DNA barcoding y distribución geográfica, se propone una nueva combinación: Epanycles satania new comb. Esta última descrita y considerada dentro del género Episcepsis Butler.

Abstract The genus Epanycles Butler (Lepidoptera: Erebidae: Arctiinae: Ctenuchina) has been considered as monotypical for 145 years, including only Epanycles imperialis (Walker). Herein, we propose a new combination: E. satania new. comb. based on external morphology, genital morphology of males and females, morphological phylogeny, DNA barcoding, and geographical distribution. Epanycles satania was originally described for the genus Episcepsis Butler.

Resumo O cladócero neotropical de água doce Bergamina lineolata (Sars, 1901) foi encontrado em uma pequena lagoa temporária no departamento de Magdalena, na Colômbia. Até o momento, havia sido relatado no Brasil e em El Salvador. Foi originalmente descrito como Alonella lineolata por Sars, 1901 no Brasil, e, em seguida, colocado no gênero Bergamina por Elmoor-Loureiro et al. (2013). Esse é o primeiro registro dessa espécie na Colômbia. B. lineolata pode ser identificada por uma combinação única de caracteres, incluindo: 1) um pós-abdômen notavelmente grande e oblongo, com três dentículos no ângulo distal; 2) espinho basal da garra muito curto, comprimento menor que o diâmetro da metade da garra na base; 3) IDL com duas cerdas mais curtas que cerdas ODL, armadas com sétulas finas unilateralmente na metade terminal; e 4) endito 1 do toracópodo I com uma longa cerda lisa entre os enditos 1 e 2.

Abstract The Neotropical freshwater cladoceran Bergamina lineolata (Sars, 1901) was found in a small temporal pond in the Magdalena department. Hitherto, it has been reported in Brazil and El Salvador. It was originally described as Alonella lineolata by Sars, 1901 from Brazil and then placed to the genus Bergamina by Elmoor-Loureiro et al. (2013). This is the first record of this species in Colombia. B. lineolata can be identified by a unique combination of characters including: 1) a remarkably large and oblong postabdomen, with three denticles on distal corner; 2) basal spine of the claw very short, length less than the half claw diameter at base; 3) IDL with two setae shorter than ODL seta, armed with fine setules unilaterally in terminal half; 4) endite 1 of trunk limb I with a long smooth seta between endites 1 and 2.

ABSTRACT The description of the new species for Brazil, Cheilolejeunea savannae L.P. Macedo, Ilk.-Borg. & C.J. Bastos, raised the need to review many specimens previously identified as Cheilolejeunea intertexta (Lindenb.) Steph., aiming to refine the concept of this species and its real distribution in Brazil. The present study also resulted in the reinstatement of Cheilolejeunea compacta (Steph.) M.E. Reiner previously considered synonymous with C. intertexta, as a distinct taxon. It also showed that C. savannae has a wider distribution in Brazil and especially in the State of Bahia, compared to C. intertexta and C. compacta. Descriptions and a key to the separation of the three species recognized here are presented. LP L P L.P Macedo Ilk.Borg. IlkBorg Ilk. Borg. Ilk Borg Ilk.-Borg CJ C J C.J Bastos Lindenb. Lindenb (Lindenb. Steph Steph. (Steph. ME M E M.E taxon Bahia presented Ilk.Borg (Lindenb (Steph

RESUMO A descrição da nova espécie para o Brasil, Cheilolejeunea savannae L.P. Macedo, Ilk.-Borg. & C.J. Bastos, suscitou a necessidade de rever muitos espécimes identificados previamente como Cheilolejeunea intertexta (Lindenb.) Steph., objetivando o refinamento do conceito desta espécie e a sua real distribuição no Brasil. O presente estudo também resultou no restabelecimento de Cheilolejeunea compacta (Steph.) M.E. Reiner, previamente considerada como sinônimo de C. intertexta, como táxon distinto. Foi demonstrado, também, que C. savannae tem distribuição mais ampla no Brasil e especialmente no Estado da Bahia, comparativamente à C. intertexta e C. compacta. Descrições e uma chave para a separação das três espécies aqui reconhecidas são apresentadas. LP L P L.P Macedo Ilk.Borg. IlkBorg Ilk. Borg. Ilk Borg Ilk.-Borg CJ C J C.J Bastos Lindenb. Lindenb (Lindenb. Steph Steph. (Steph. ME M E M.E Reiner distinto demonstrado Bahia apresentadas Ilk.Borg (Lindenb (Steph

ABSTRACT A new species of Americabaetis Kluge, 1992 is described based on nymphs and subimagos from Itatiaia National Park, close to the border of Minas Gerais and Rio de Janeiro, Brazil. The new species can be differentiated from the remaining species of the genus based on the following combination of characteristics: (1) frontal keel present, (2) right mandible with angle between incisors and mola obtuse, (3) paraglossa nearly twice longer than wide, (4) fore femur with 40-42 long, apically acute, simple setae in outer margin, (5) gills grayish with pigmented tracheation, (6) distinctive abdominal color pattern (two white posterolateral spots on abdominal terga IV and VII, white medial band running along abdominal terga, and lateral margins washed with brown), (7) posterior margin of abdominal terga with triangular spines, and (8) paraproct marginally with 12-14 spines. Given the development of the labial palp segment III, shape of the apex of the lingua, and robustness of the body, the new species is somewhat similar to A. labiosus and A. titthion. It can be readily distinguished from A. titthion by the absence of meso and metasternal projections and by the shape of spines on the posterior margin of abdominal terga (triangular on the new species, blunt on A. titthion). The main differences between the new species and A. labiosus are the paraglossa length/width ratio (2.3x in the new species, 2.5x in A. labiosus), the relative length of the maxillary palp (longer than galea-lacinia in the new species versus subequal in A. labiosus), as well as pigmentation of tracheae on gills (which is absent in A. labiosus). The abdominal color pattern of A. itatiaia sp. nov. is also very distinctive in relation to A. labiosus and A. titthion. Kluge 199 Park Janeiro Brazil characteristics 1 (1 present 2 (2 obtuse 3 (3 wide 4 (4 4042 40 42 40-4 long acute 5 (5 tracheation 6 (6 two VII brown, brown , brown) 7 (7 8 (8 1214 12 14 12-1 III lingua body . titthion) lengthwidth width 2.3x 23x x 3x 25x 5x labiosus, labiosus) galealacinia galea lacinia which labiosus. sp nov 19 ( 404 40- 121 12-

Abstract A catalog of the type specimens found and a list of the species of the family Cossidae preserved in the Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” is presented herein. Fourteen nominal species belong to 64 type specimens are represented. The list of species is based on the examination of 475 specimens belonging to 22 genera and 53 species, within five subfamilies. In the mentioned list, the geographic distribution of each species in Argentina and other countries of America is provided. Photographs of fourteen nominal species are presented.

Resumen Este estudio incluye el catálogo de los ejemplares tipo y una lista de las especies de la familia Cossidae preservados en el Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”. Catorce especies nomina les están representadas por 64 especímenes tipo. La lista de especies se basa en la revisión de 475 ejemplares pertenecientes a 22 géneros y 53 especies, dentro de cinco subfamilias. En dicha lista, se provee la distribución geográfica de cada especie en Argentina y otros países de América. Se presentan fotografías de las catorce especies nominales.

Recent collection of Gloeocantharellus corneri is discovered from Amazonia in the State of Pará, North Brazil. Description, discussion, drawings and photographs are provided.

Colecta reciente de Gloeocantharellus corneri es descubierta para la AmazonÃa del es tado de Pará, Norte de Brasil. El trabajo provee una descripción, discusión, diseños y fotografÃas.

Abstract New localities for the species Oxysternon ebeninum (Nevison, 1890) are recorded in Amazonas state, Venezuela, where the environmental conditions of these places are significantly different to those previously reported in the literature.

Resumen Se registran nuevas localidades para la especie Oxysternon ebeninum (Nevison, 1890) al norte del estado Amazonas, Venezuela, donde las condiciones ambientales de estos lugares son significativamente diferentes a las reportadas previamente en la literatura.

Resumen Una especie nueva de Leucocoprinus se recolectó en la región semiárida de Brasil, en el dominio de la Caatinga. Leucocoprinus rhodolepis se describe con datos morfológicos. Se caracteriza por el píleo blanco con escamas en distintos matices de color rosa anaranjado en el centro, basidiosporas elipsoides sin poro germinal 6.9-7.8 × 4.9-5.9 µm, queilocistidios claviformes o anchamente claviformes, rara vez ventricosos o capitados. Se proporcionan descripciones e ilustraciones macro y micromorfológicas detalladas, así como una comparación con especies relacionadas y una breve discusión sobre su estado de conservación.

Abstract A novel Leucocoprinus species was collected from the semi-arid region of Brazil in the Caatinga domain. Leucocoprinus rhodolepis is described based on morphological data. It is well characterized by its white pileus with distinct orange-pink pileal squamules at the center, ellipsoid basidiospores measuring 6.9-7.8 × 4.9-5.9 µm lacking an apical germ pore, and clavate to broadly clavate rarely ventricose-capitate cheilocystidia. Detailed macro- and micro-morphological descriptions and illustrations are provided, as well as a comparison with related species and a brief discussion about its conservation status.

Resumen El Chocó-Darién es una importante área biogeográfica, pues es un hotspot de biodiversidad terrestre y el límite sur de los arrecifes del Caribe. Sin embargo, hasta la fecha no existen datos compilados actualizados sobre las especies de peces de arrecife de esta región. En este trabajo proporcionamos una lista actualizada de peces marinos del sistema arrecifal del Chocó-Darién (Colombia), con comentarios sobre su distribución geográfica y estado de conservación. Para la elaboración de esta lista se consultaron publicaciones, datos no publicados y censos visuales in situ. Se recopilaron 212 especies de peces de arrecife de 57 familias. Ocho de estas especies no tenían registros previos publicados, y una de ellas es registrada por primera vez (Trachinotus falcatus). Las familias con mayor número de especies fueron Labridae (n = 21), Gobiidae (n = 18) y Serranidae (n = 17). Se registraron 14 especies amenazadas, entre ellas una en peligro crítico (Epinephelus striatus) y dos en peligro (Balistes vetula y Scarus coelestinus). Este estudio contribuye a complementar las lagunas de conocimiento sobre la diversidad de los peces de arrecife del límite sur del Caribe y plantea la preocupación de la invasión del pez león en el sistema arrecifal del Chocó-Darién.

Abstract Chocó-Darien is an important biogeographic realm, as it is a terrestrial biodiversity hotspot and the southern limit of the Caribbean reefs. However, to date there are no compiled data on the reef fish assemblage of this region. We provide an updated checklist of marine fishes from the Chocó-Darien reef system (Colombia), with comments on their geographic distribution and conservation status. Peer-reviewed studies, unpublished data and in situ visual censuses were surveyed to compose this checklist. A total of 212 reef fish species across 57 families were compiled, eight of which had no previously published records, one of which (Trachinotus falcatus) is recorded for the first time. The most speciose families were Labridae (n = 21), Gobiidae (n = 18) and Serranidae (n = 17). Fourteen threatened species were recorded, including one critically endangered (Epinephelus striatus) and two endangered (Balistes vetula and Scarus coelestinus). This study contributes to fill the knowledge gaps on the reef fish diversity of the Caribbean southern limit and raises concern on the spread of the lionfish invasion into the Chocó-Darién reef system.