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Expansion of Sinotaia quadrata (Mollusca: Gastropoda: Architaenioglossa: Viviparidae) in two major rivers from Argentina
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GREGORIC, DIEGO E. GUTIÉRREZ

; LUCÍA, MICAELA DE

; TORRES, SANTIAGO H.

; COPA, JORGE L. E.

; SÁNCHEZ, NOELIA C.

; DARRIGRAN, GUSTAVO

Anais da Academia Brasileira de Ciências

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2024, Volumen 96 Nº 2 elocation e20231280

Resumen: En | Texto: En | PDF: En

Abstract Invasive non-native freshwater mollusks are a growing concern in South America, with 16 species already recorded in the region. Among them, Sinotaia quadrata has only been documented in Argentina, for the first time in the Punilla Valley, Córdoba (2009) and La Plata, Buenos Aires (since 2015). In this study, we report the presence of S. quadrata in two additional areas, the Río de la Plata River and a stream (unnamed) in the Paraná River basin, two of the most significant rivers in South America, located in the provinces of Buenos Aires and Entre Ríos, respectively. These new records confirm the invasive nature of this species, which has also been identified in Europe, the United States, and Africa in recent years. The findings of this study highlight the need for continued monitoring and management of invasive species in South America’s freshwater ecosystems.

https://doi.org/10.1590/0001-3765202420231280

Cave-dwelling gastropods of Brazil: a reply to Ferreira et al. (2023)
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Salvador, Rodrigo B.

; Silva, Fernanda S.

; Cavallari, Daniel C.

; Cunha, Carlo M.

; Bichuette, Maria E.

Zoologia (Curitiba)

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2024, Volumen 41 elocation e23099

Resumen: En | Texto: En | PDF: En

ABSTRACT In 2022, we published an article in this journal entitled “Cave-dwelling gastropods (Mollusca: Gastropoda) of Brazil: state of the art and conservation”. In that study, we compiled all the available information about cave-dwelling gastropods in the country, including terrestrial and freshwater species. We focused on the troglobites but also included information regarding some troglophilic species that we deemed worthy of discussion. In 2023, Ferreira et al. also in this journal, raised concerns regarding our article. We respond to their observations here.

https://doi.org/10.1590/s1984-4689.v41.e23099

Assessing the role of taxonomic impediment in the knowledge on geographic distribution of Physidae (Gastropoda: Hygrophila) in South America, using an intensive-data approach
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SARTINI, BIANCA

; OVANDO, XIMENA MARIA C.

; ALTOMARI, LESLIE N.

; MACANHA, FLÁVIO LUCAS

; ROSSI, MARIANA F.

; D’ÁVILA, STHEFANE

Anais da Academia Brasileira de Ciências

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2024, Volumen 96 Nº 2 elocation e20230972

Resumen: En | Texto: En | PDF: En

Abstract There is a marked disparity in the state of knowledge of Holartic x Neotropical species of the freshwater snail family Physidae; the incipiency of data on Neotropical physids reflecting the lower number of dedicated specialists. The gaps in the knowledge on Neotropical physids have led to historical uncertainty about species validity. Revisiting the species is essential to reduce taxonomic impediment and delineating their probable distribution is the first step to attain this purpose. We aimed at critically analyze occurrence records of South American physids, compiled through an intensive search in the literature, biodiversity and molecular databases. We present a provisional characterization of the distribution of this family in South America, considering the probable versus the poorly documented distribution of the species. The critical underrepresentation of South American physids in collections, molecular databases and literature reinforces the role of taxonomic impediment in delaying the advance of the knowledge on species diversity. Malacological collections represented the main source of records, evidencing the relevance of unpublished data associated to specimens to assess distributional information on neglected groups. As most of the species are represented by shells, the reassessment of species identity and distribution must be done, using molecular and anatomical criteria for species delimitation.

https://doi.org/10.1590/0001-3765202420230972

Notes on Kora and description of a new species from Minas Gerais, Southeast Brazil (Mollusca: Gastropoda: Stylommatophora)
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Pena, Meire Silva

Zoologia (Curitiba)

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2024, Volumen 41 elocation e23059

Resumen: En | Texto: En | PDF: En

ABSTRACT Kora Simone, 2012, currently includes three species known only by shell morphology. They are distributed in the states of Bahia and Minas Gerais in central Brazil, where they occur in association with limestone outcrops. Features used to identify them include micro-ornamentation of the protoconch, color pattern, and morphometric data. This paper expands the characterization of the genus through the description of the internal anatomy of two of its species. These features also distinguish a new species, which is described herein. Material was collected manually during several field expeditions to Parque Nacional Cavernas do Peruaçu in northern Minas Gerais. Total height and maximum width, and height and width of the aperture, were measured; the number of whorls determined; and staining patterns typified. The digestive and reproductive systems and pallial complex were characterized for Kora rupestris Salvador & Simone, 2016 and Kora arnaldoi sp. nov., which are distinguished by the latter possessing a protoconch with a smooth first ½ whorl, a more tapered profile, a jaw with 18 folds, a buccal bulb with a short radular core, and a fertilization complex with only one tubular fold. The two species share a very peculiar pattern of radula teeth compared to other genera of the family, given that they are rupicolous but do not live inside caves. Diagnostic knowledge of the genus was expanded.

https://doi.org/10.1590/s1984-4689.v41.e23059

New species, misidentifications and problematic taxonomy of some Atlantic South American marine mollusks: a review
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Simone, Luiz Ricardo L.

Papéis Avulsos de Zoologia

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2024, Volumen 64 elocation e202464031

Resumen: En | Texto: En | PDF: En

Abstract In preparation for compiling a catalogue of the South Atlantic American malacofauna, this study addresses the taxonomy of selected species within less intricate groups to ensure accurate classification within the catalogue. The following nomenclatural acts are undertaken for this purpose: New species descriptions: 1, Tectura iguypis; 2, Nacella mirim; 3, Calliostoma soror; 4, Abyssochrysos quasilissus; 5, Caecum jonesae; 6, Sinum striotis; 7, Agaronia sterica; 8, Voluta melodica; 9, Phrontis rocas; 10, Goniofusus phoenix; 11, Dolicholatirus etherius; 12, Lightbournus rendatus; 13, Terebra joculosa; 14, Neoterebra potiguar; 15, Trimusculus pifius; 16, Brevinucula overa; 17, Ennucula ipepa; 18, Tindaria ruru; 19, Barbatia pehenguis; 20, Bathyarca arcadia; 21, Bentharca celeris; 22, Electroma electra; 23, Brachidontes ynous; 24, Pinna trindadis; 25, Pinna nembia; 26, Pinna pereria; 27, Servatrina amazonica; 28, Warrana culmen; 29, Lucinoma apocalyptica; 30, Cyrenoida implexa; 31, Hiatella marisqueira; 32, Cyrtopleura angelicalis; 33, Lyonsiella angulosa; 34, Graptacme obtura. Species revalidated: 1, Fissurella itapema; 2, Cranopsis watsoni; 3, Pedicularia tibia; 4, Semicassis iheringi; 5, Anachis veleda; 6, Terebra chilensis; 7, Iselica anomala; 8, Barbatia cancellaria; 9, Acar domingensis; 10, Limopsis paucidentata; 11, Paracratis borealis; 12, Crassostrea mangle; 13, Abra americana; 14, Choristodon typicum; 15, Pseudochama radians; 16, Polyschides quadridentatum. New synonyms: 1, Fissurella clenchi; 2, Natica castanea; 3, Cyphoma macumba; 4, Voluta thevenini; 5, Pleuroploca granulilabris; 6, Polyschides xavante; 7, Polyschides noronhensis. New combinations: 1, Falsilunatia limbata; 2, Goniofusus damasoi. Redescriptions/taxonomy commented: 1, Nacella mytilina; 2, Fissurella rosea; 3, Calliostoma depictum; 4, Depressiscala nautlae; 5, Depressiscala niditella; 6, Scala scipio; 7, Abyssochrysos brasilianus; 8, Caecum antillarum; 9, Cheilea equestris; 10, Sinum perspectivum; 11, Pseudocyphoma intermedium; 12, Cyphoma signatum; 13, Coronium; 14, Voluta ebraea; 15, Nassarius albus; 16, Goniofusus brasiliensis; 17, Goniofusus strigatus; 18, Leucozonia nassa; 19, Anachis lyrata; 20, Terebra gemmulata; 21, Turbonilla obsoleta; 22, Brevinucula verrillii; 23, Tindaria amabilis; 24, Bathyarca glomerula; 25, Bentharca asperula; 26, Crassostrea mangle; 27, Pinna carnea; 28, Kalolophus antillarum; 29, Warrana besnardi; 30, Chama cristella; 31, Hiatella solida; 32, Cyrtopleura costata; 33, Polyschides tetraschistus. Extension of distribution: 1, Amaea mitchelli; 2, Tindaria cytherea; 3, Lyratellina juttingae. Change of genus: 1, Naticarius cayennensis. New replacement name: 1, Turbonilla absalaoi. Validity of species discussed: 1, Cheilea atlantica; 2, Cheilea americana. Families revalidated: 1, Trichotropidae. Fossil species proposed to remain fossil-only: 1, Cranopsis granulata; 2, Iselica globosa; 3, Limopsis aurita; 4, Limopsis minuta; 5, Abra longicallus. All 104 nomenclatural acts are thoroughly justified, discussed, and mostly illustrated. Several of these acts have co-authors. https://zoobank.org/6DB1BC9F-A0E9-4C36-8BEF-EF8A375F0693.

https://doi.org/10.11606/1807-0205/2024.64.031

A new species of Haminoea in Brazilian coast (Cephalaspidea, Haminoeidae) as part of H. elegans group
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Galvão Filho, Hilton de Castro

; Lima, Patricia Oristanio Vaz de

; Simone, Luiz Ricardo L.

Papéis Avulsos de Zoologia

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2024, Volumen 64 elocation e202464019

Resumen: En | Texto: En | PDF: En

Abstract Haminoea maray is introduced as a replacement for what was previously identified as H. elegans, now recognized as a complex comprising several species found on both sides of the Atlantic. This descriptive paper presents a comprehensive phenotypic study based on specimens collected from Ceará to São Paulo, Brazil, and had been previously recognized as a molecular variant. The newly described species inhabits estuarine environments with low salinity, exhibiting distinct conchological and anatomical features compared to other populations of H. elegans and related congeners. https://zoobank.org/936AAD86-91A6-459D-A6ED-9C3DC7F2E8FF.

https://doi.org/10.11606/1807-0205/2024.64.019

New land microsnails of the genus Gastrocopta (Eupulmonata: Gastrocoptidae) in the semiarid region of Brazil
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Lima, Silvio Felipe Barbosa

; Abreu, Evandro Cosmo Tomaz de

Papéis Avulsos de Zoologia

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2024, Volumen 64 elocation e202464040

Resumen: En | Texto: En | PDF: En

Abstract In Brazil, Gastrocoptidae Pilsbry, 1918 includes only land microsnails of the genus Gastrocopta Wollaston, 1878. Here, two new species of Gastrocopta are described from the phytogeographic domain of the Caatinga (semiarid scrubland): Gastrocoptajoaoherminioi sp.nov. and Gastrocopta caatinga sp.nov. The shell morphology of G. joaoherminioi sp.nov. differs substantially from native and invasive congeners of Brazil, mainly in the greatly convex whorls as well as in the number and configuration of apertural barriers, which totals 11 very strongly developed teeth (except suprapalatal tooth) that greatly obstruct the region. The shell morphology of G. caatinga sp.nov. has a typical ovoid shape and apertural barriers totaling four teeth that do not obstruct the region (except for the projection of parieto-angular tooth). The new land snails, found in a dense layer of leaf litter on sandy soil at a semi-open dry tropical forest habitat, are compared with congeners from the neotropical region.

https://doi.org/10.11606/1807-0205/2024.64.040

New records for the pleustonic snails Janthina and Recluzia (Gastropoda: Epitoniidae) for Chile
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Fuentes, Marina Aliaga, Juan Antonio Ballesteros, Luis Zambrano, Nicolás Araya, Juan Francisco

Gayana (Concepción)

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Jun 2023, Volumen 87 Nº 1 Paginas 33 - 36

Resumen: En Es | Texto: En Es | PDF: En | PDF: Es

ABSTRACT Janthina and Recluzia species are pleustonic snails that feed on cnidarians and can be easily differentiated by their shells, which are of a striking purple to violet-blue hue in Janthina, and whitish to brownish in Recluzia. In the southeastern Pacific off Chile, four of the five extant Janthina species and a single species of Recluzia have been recorded. In this work, we present new records for Janthina janthina (Linnaeus, 1758) for specimens collected at San Felix Island, in the Desventuradas Islands, and for Recluzia lutea (Bennet, 1840) for a specimen collected at Robinson Crusoe Island, in the Juan Fernandez Archipelago. These records fill a gap in the geographical distribution of J. janthina in the southeastern Pacific and extend the distribution of R. lutea in about 3000 km from its previous record at Easter Island, being the most easterly record for the species.

RESUMEN Las especies de Janthina y Recluzia son caracoles pleustónicos que se alimentan de cnidarios y se pueden diferenciar fácilmente por sus conchas, que son de un llamativo tono purpura a azulino en Janthina, y de blanquecino a marrón en Recluzia. En el Pacífico sureste frente a Chile se han registrado cuatro de las cinco especies existentes de Janthina y una sola especie de Recluzia. En este trabajo presentamos nuevos registros de Janthina janthina (Linnaeus, 1758) para especímenes recolectados en la Isla San Félix, en las Islas Desventuradas, y de Recluzia lutea (Bennet, 1840) para un ejemplar recolectado en la Isla Robinson Crusoe, en el Archipiélago Juan Fernández. Estos registros llenan un vacío en la distribución geográfica de J. janthina en el Pacífico sureste y extienden la distribución de R. lutea en unos 3000 km desde su registro anterior en Isla de Pascua, siendo el registro más oriental para la especie.

Updated list and new records of sea slugs (Gastropoda: Heterobranchia) in the Lobos-Tuxpan Reef System, Mexico
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Cruz-Francisco, Vicencio de la Hernández-Herrera, Rosa Idalia Ortigosa, Deneb Cuervo-González, Rodrigo

Hidrobiológica

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Abr 2023, Volumen 33 Nº 1 Paginas 39 - 50

Resumen: Es En | Texto: Es En | PDF: Es | PDF: En

Resumen Antecedentes: En el Área Natural Protegida Sistema Arrecifal Lobos-Tuxpan (SALT), México, la presencia de babosas marinas se ha documentado en varias investigaciones científicas, pero la información es limitada, se encuentra dispersa y desactualizada. Objetivo: Elaborar una lista actualizada de las especies con base en la adición de nuevos datos de campo y de la compilación de especies reportadas previamente en la literatura para el SALT. Métodos: Se realizaron muestreos en el arrecife Lobos (durante noviembre 2014 y 2017), arrecife Enmedio (septiembre 2016, abril 2017, junio 2018, julio y noviembre 2019) y en el arrecife Tuxpan (junio y octubre 2016, y abril 2017). El listado de especies se complementó con registros de especies reportadas previamente para el SALT. Resultados: La lista actualizada comprende 27 especies de babosas marinas. Los grupos más representativos son: orden Cephalaspidea con nueve especies, Aplysiida con siete especies y Superorden Sacoglossa con siete especies. Se extiende la distribución de Cyerce habanensis y Elysia cornigera para el norte de Veracruz y Lobiger souverbii constituye nuevo registro para el Corredor Arrecifal del Suroeste del Golfo de México. Conclusiones: La presente investigación incrementa favorablemente el conocimiento de las babosas marinas para el SALT. Esta información puede apoyar las estrategias de conservación y protección para el plan de manejo de esta área natural protegida.

Abstract Background: In the Lobos-Tuxpan Reef System Protected Natural Area (LTRS), Mexico, the presence of sea slugs has been documented in several scientific investigations, but the information is limited, scattered and out of date. Goals: To elaborate an updated list of species with new field data and the compilation of species previously reported in the literature for LTRS. Methods: Samplings were carried out in the Lobos reef (during November 2014 and 2017), Enmedio reef (September 2016, April 2017, June 2018, July and November 2019) and the Tuxpan reef (June and October 2016, and April 2017). The list of species was complemented with records of species previously reported for LTRS. Results: The updated list comprises up to 27 species of sea slugs. The most representative groups are: Order Cephalaspidea with nine species, Aplysiida with seven species and Superorder Sacoglossa with seven species. The distribution of Cyerce habanensis and Elysia cornigera extends to the north of Veracruz and Lobiger souverbii constitutes a new record for the Southwestern Gulf of Mexico Reef Corridor. Conclusions: Our study favorably increases the knowledge of sea slugs for the LTRS. This information could support strategies of conservation and protection for the management plans of this protect natural area.

https://doi.org/10.24275/uam/izt/dcbs/hidro/2023v33n1/cuervo

10.

First report of Euthyneura (Heterobranchia: Gastropoda) in the Early Jurassic of Southern Patagonia, Argentina
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Ferrari, Mariel

Andean geology

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Abr 2023, Volumen 50 Nº 2 Paginas 291 - 301

Resumen: En Es | Texto: En Es | PDF: En | PDF: Es

Abstract The present paper aims at the description of two new species of Euthyneura (Heterobranchia: Gastropoda) in the Early Jurassic (early Pliensbachian) marine deposits of the Chubut Basin at southern Patagonia, Argentina. The new species Cossmannina australis nov. sp. and Cylindrobullina caquelensis nov. sp. were found at the Cerro Caquel locality located in the western slope of Sierra de Tecka and río Tecka valley. The new locality yielded the ammonite Eoamaltheus sp. (E. meridianus Hillebrandt Zone, upper part of Ibex Zone to Davoei Zone) which allowed to assign an early Pliensbachian age for the marine deposits at the studied area, providing also new evidence of the oldest record within the Early Jurassic in the Sierra de Tecka region. The new report of Euthyneura in the Chubut Basin extends the palaeobiogeographical distribution of this clade into the southern hemisphere during the earliest Pliensbachian.

Resumen Primer registro de euthyneura (heterobranchia: gastropoda) en el jurásico temprano de la patagonia austral, argentina. El presente trabajo tiene como objetivo la descripción de dos nuevas especies de Euthyneura (Heterobranchia: Gastropoda) registradas en el Jurásico temprano (Pliensbachiano temprano) de la cuenca de Chubut, en la Patagonia austral, Argentina. Las nuevas especies Cossmannina australis nov. sp. y Cylindrobullina caquelensis nov. sp. provienen de la localidad de Cerro Caquel ubicada en la ladera occidental de la Sierra de Tecka y del valle del río Tecka. En la nueva localidad también se registró el amonite Eoamaltheus sp. (Zona de E. meridianus Hillebrandt, parte superior de la Zona de Ibex a Zona de Davoei) lo que permite asignar una edad pliensbachiana temprana a los sedimentos marinos de la región, aportando asimismo nueva evidencia sobre el registro más antiguo dentro del Jurásico temprano para la Sierra de Tecka. Los nuevos hallazgos de Euthyneura en la cuenca jurásica de Chubut extienden la distribución paleobiogeográfica del grupo en el hemisferio sur durante el Pliensbachiano temprano.

https://doi.org/10.5027/andgeov50n2-3487

11.

Morphology, morpho-taxometric and molecular characterization of the invasive alien species Caribbean leatherleaf slug Sarasinula plebeia (Gastropoda: Veronicellidae): a first record in southern Philippines Morphology morphotaxometric morpho taxometric Gastropoda (Gastropoda Veronicellidae Veronicellidae)
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Dalan, Loel Bacolod

; Diano, Michelle Anne Bernabe

; Sumaya, Nanette Hope Nellas

Papéis Avulsos de Zoologia

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2023, Volumen 63 elocation e202363010

Resumen: En | Texto: En | PDF: En

Abstract Herein, we first report the comprehensive description of the terrestrial slug, Sarasinula plebeia (Gastropoda: Veronicellidae) by employing morphology, morpho-taxometrics and molecular analysis. A rapid survey on terrestrial slug invasive alien species (IAS) was conducted in La Dicha, Malangas, Zamboanga Sibugay, the Philippines. Obtained COI gene sequences shared 100% similarities to S. plebeia from Brazil (JX532107, KM489378), Dominica (KM489500) and Vietnam (KM489367) and further supported using Bayesian analysis thus designated as S. plebeia isolate LDZS. Notably, the first reported S. plebeia in 2013 from Batan island, Batanes, northern Philippines, characterized through COI gene markers (JQ582277, JQ582278, JQ582279) showed 100% sequence similarities to a closely related veronicellid slug, Laevecaulis alte isolates (LC636101, LC636102, LC636103, and LC636104) from Japan. Taken this into account, our S. plebeia LDZS isolated from an agricultural field is the first report in the Philippines with combined diagnostic tools for the taxon. Herein Gastropoda (Gastropoda Veronicellidae morphology morphotaxometrics morpho taxometrics IAS (IAS Dicha Malangas Sibugay 100 S JX532107, JX532107 JX (JX532107 KM489378, KM489378 KM , KM489378) KM489500 (KM489500 KM489367 (KM489367 Notably 201 island Batanes JQ582277, JQ582277 JQ (JQ582277 JQ582278 JQ582279 LC636101, LC636101 LC (LC636101 LC636102 LC636103 LC636104 Japan account taxon 10 JX53210 (JX53210 KM48937 KM48950 (KM48950 KM48936 (KM48936 20 JQ58227 (JQ58227 LC63610 (LC63610 1 JX5321 (JX5321 KM4893 KM4895 (KM4895 (KM4893 2 JQ5822 (JQ5822 LC6361 (LC6361 JX532 (JX532 KM489 (KM489 JQ582 (JQ582 LC636 (LC636 JX53 (JX53 KM48 (KM48 JQ58 (JQ58 LC63 (LC63 JX5 (JX5 KM4 (KM4 JQ5 (JQ5 LC6 (LC6 (JX (KM (JQ (LC

https://doi.org/10.11606/1807-0205/2023.63.010

12.

First record of the exotic Indothais lacera (Gastropoda, Muricidae) in Brazil Gastropoda, Gastropoda (Gastropoda Muricidae
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Pedro, Natan Carvalho

; Salvador, Rodrigo Brincalepe

; Simone, Luiz Ricardo L.

Papéis Avulsos de Zoologia

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2023, Volumen 63 elocation e202363004

Resumen: En | Texto: En | PDF: En

Abstract Bioinvasions are one of the main causes of the decline of native biodiversity. Indothais lacera (Born, 1778) is a carnivorous gastropod, native to the Indo-Pacific. We present the first records of I. lacera on the Brazilian coast and the first record of this invasive species in the Western Atlantic. The specimens were found in two locations in the Baía de Todos os Santos, Bahia state, northeast of Brazil. Live specimens were collected in the Itapagipe Peninsula, in Ribeira, Salvador, and dry samples (empty shells) were collected in the extreme north of Itaparica Island. Molecular analyses indicate that there was more than one event of introduction of I. lacera in the bay and alert to the potential impacts that this species can have on the benthic community in the region. We suspect that this exotic species is affecting a native population of Thaisella, which was previously locally abundant but has since become rare. biodiversity Born, Born (Born 1778 gastropod IndoPacific. IndoPacific Indo Pacific. Pacific Indo-Pacific I Atlantic Santos state Brazil Peninsula Ribeira Salvador empty shells Island region Thaisella rare 177 17 1

https://doi.org/10.11606/1807-0205/2023.63.004

13.

Diversity of non-marine mollusks in the southernmost Paranaense forest of the world nonmarine non marine
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LUCÍA, MICAELA DE

; DARRIGRAN, GUSTAVO

; GREGORIC, DIEGO EDUARDO GUTIÉRREZ

Anais da Academia Brasileira de Ciências

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2023, Volumen 95 Nº 1 elocation e20220212

Resumen: En | Texto: En | PDF: En

Abstract The Natural Reserve of Punta Lara (RNPL) is a protected natural area that includes Paranaense forest southernmost in the world. This area is surrounded by a densely populated and touristic sector. The objective of this work was to estimate the richness, diversity and equity of the RNPL mollusks (aquatic and terrestrial) and to establish the relationship of their species in aquatic environments. One sampling per year was carried out between 2013 and 2019. There were 32 species recorded (six are non-native species): 23 gastropods (14 freshwater, nine terrestrial) and nine bivalves. Three species were recorded in all sampling years, while six only on one occasion. The land snail genus Drepanostomella is reported for the first time in that region, and five freshwater species are reported for the first time for the RNPL. The similarity analysis of the freshwater environment separated the coastal environments from the internal environments. The environments with the highest specific richness were in internal sites of the RNPL, while the least diverse was the coast of the Río de la Plata, where the invasive species Limnoperna fortunei predominates. It is recommended to increase the conservation efforts of the different environments of the RNPL continuously threatened by urbanization. (RNPL world sector terrestrial 201 2019 3 nonnative non native species) 2 14 (1 bivalves years occasion region Plata predominates urbanization 20 1 (

https://doi.org/10.1590/0001-3765202320220212

14.

Cave-dwelling gastropods (Mollusca: Gastropoda) of Brazil, state of the art and conservation: a critical review
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Ferreira, Rodrigo Lopes

; Souza-Silva, Marconi

; Zampaulo, Robson de Almeida

Zoologia (Curitiba)

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2023, Volumen 40 elocation e22057

Resumen: En | Texto: En | PDF: En

ABSTRACT In 2022, Salvador and co-authors published an up-to-date list of gastropod species recorded from Brazilian caves. That list included 18 species (15 land and three freshwater species) that were considered by the authors to be restricted to caves (troglobitic). In this contribution we argue that only six of the species listed by them as truly troglobites can be classified in that category. We disagree with some characteristics listed by Salvador and co-authors to diagnose the species they classify as cave-restricted and argue that those species do not have truly troglomorphic traits (characteristic of subterranean habitats). Since the Brazilian legislation considers the degree of association with caves as a decisive attribute to preserve them, it is important to clarify the characteristics are sufficient and necessary for a species to be classified as cave-dependent.

https://doi.org/10.1590/s1984-4689.v40.e22057

15.

How many species of Mollusca are there in Brazil? A collective taxonomic effort to reveal this still unknown diversity
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Machado, Fabrizio M.

; Miranda, Marcel S.

; Salvador, Rodrigo B.

; Pimenta, Alexandre D.

; Côrtes, Mariana O.

; Gomes, Jaime A.J.

; Miyahira, Igor C.

; Agudo-Padrón, Ignacio

; Oliveira, Cléo D.C.

; Caetano, Carlos H.S.

; Coelho, Paulo R.S.

; D’Ávila, Sthefane

; Arruda, Eliane P. de

; Almeida, Sérgio M. de

; Gomes, Suzete R.

; Alvim, Juliana

; Galvão-Filho, Hilton

; L. Ferreira-Júnior, Augusto

; Marques, Rodrigo C.

; Martins, Inês

; Souza, Leonardo S. de

; Arruda, Janine O.

; Cavallari, Daniel C.

; Santos, Sonia B. dos

; Pedro, Natan C.

; Salles, Anna C. de A.

; Dornellas, Ana P.S.

; Lima, Tarcilla C. de

; Amaral, Vanessa S. do

; Silva, Fernanda S.

; Passos, Flávio D.

; Thiengo, Silvana S.

; Leite, Tatiana S.

; Simone, Luiz R.L.

Zoologia (Curitiba)

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2023, Volumen 40 elocation e23026

Resumen: En | Texto: En | PDF: En

ABSTRACT The expression ‘you need to know to conserve’ is a well-known cliche among biologists. Documenting the richness of a group of organisms is the first step towards understanding biodiversity and preparing efficient conservation plans. In this context, many efforts have been made to quantify the number of species on Earth and estimate the number of species still unknown to science. A few countries have complete and integrated databases estimating the approximate number of species recorded for their territory, particularly in the Global South. In Brazil, a country of continental dimensions, revealing the richness of the second most diverse clade of invertebrates (=Mollusca) has been a goal of taxonomists. Recently, in an unprecedented, collective, and integrated effort among Brazilian malacologists, it was possible to estimate how many valid species of molluscs are there in Brazil. In this effort, more than 30 mollusc experts joined together to update the Taxonomic Catalogue of the Brazilian Fauna (TCBF), a governmental website that allows a quick and real-time updating of all Metazoan. So far, more than 5,000 updates have been made in TCBF, indicating the presence of 3,552 valid species of molluscs in Brazil, distributed among the main clades as follows: Caudofoveata (10 spp.), Solenogastres (6 spp.), Polyplacophora (35 spp.), Scaphopoda (43 spp.), Cephalopoda (92 spp.), Bivalvia (629 spp.) and Gastropoda (2,737 spp.). The present study, in addition to demonstrating for the first time the richness of Brazilian molluscs, also presents the state of the art of this important phylum of invertebrates highlighting its most representative and neglected groups.

https://doi.org/10.1590/s1984-4689.v40.e23026

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