Abstract Zoological collections are fundamental repositories of biodiversity and have an important role in scientific dissemination. The National Institute of Mata Atlântica (INMA, previously called Professor Mello Leitão Biology Museum) founded by Augusto Ruschi is situated in Santa Teresa, Espírito Santo, Brazil, within the Atlantic Forest Biome, being a relevant source for the development of research in this habitat. The aim herein is to inventory the crustacean collection of INMA with a complete list of the species and their habitat. This collection is not yet digitized or available online. The collection totals 52 species in 41 genera, belonging to 26 families and comprises major crustacean groups, with a particular focus on Decapoda. All holdings are from Brazil. It consists of 443 specimens included in 131 records, representing mostly the Espírito Santo carcinofauna. Without online publication of the specimen data, the visibility and use of the collection would likely remain limited. Sourcing specimens through online databases will facilitate the production of guides and taxonomic training, and also more information can be passed on to the community as a whole. Thus, a proposal for future management of the Crustacea collection of INMA is to digitize the data through photos of the specimens and associated labels.

ABSTRACTTwo new species of family Tanaopsidae, genus Tanaopsis, from Admiralty Bay (Antarctica) are herein described. Tanaopsis brevicorpus sp. nov. displays antennule article 1 about 1.5 times as long as wide, carapace as long as first three pereonites, both rami of uropod biarticulate with fusion line, and pleotelson short, more than twice longer than wide. Tanaopsis bamberi sp. nov. resembles other Antarctic species T. kerguelenensis in its habitus, antennule long and uropod uniarticulate. However, the new species can be distinguished from it by a combination of characters that includes maxilliped basis with long seta arising from tubercles; inner margin of cheliped fixed finger with three smooth sub-terminal spines; uropod subequal to pleotelson in length, and uropodal endopod about twice as long as exopod.