Critical review of type specimens deposited in the Malacological collection of the biological institute/Ufrj, Rio de Janeiro, Brazil

Abstract

The Malacological Collection of the Biological Institute of Federal University of Rio de Janeiro figures as an important repository of specimens, containing c.a. 21,000 lots, most of them collected at deep sea of southeast Brazil. A critical review of literature and types deposited in this collection revealed the existence of 191 lots containing type specimens (23 holotypes and 168 paratypes), corresponding to 129 nominal species divided in three classes: Gastropoda (109 names, subdivided in 62 Caenogastropoda; 32 Heterobranchia and 15 Vetigastropoda), Bivalvia (17 names subdivided in 10 Protobranchia; 6 Heterodonta and 1 Pteriomorphia), and Scaphopoda (3 names). For each species, an updated list of data is provided, including the collecting location (revised or corrected, when necessary), number of specimens actually present (i.e., physically found in the collection), nomenclatural acts (if needed) and any other specific issue concerning particular species. It is beyond the scope of this study to discuss classifications or promote subjective judgment on taxonomy at any level for names treated here.

Coleção Biológica do CEPENE/ICMBio: Aspectos Históricos e Acervo Atual

“…Nos últimos 20 anos, algumas coleções biológicas receberam recursos difusos e pontuais para manutenção e ampliação de seus acervos, principalmente em função do reconhecimento internacional das publicações dos pesquisadores brasileiros e/ou de grandes projetos e levantamento acerca da biodiversidade brasileira (Dornelas & Simone, 2011;Pimenta et al, 2014;Oliveira & Costa, 2016;Rocha-Barreira et al, 2016;Lucatelli et al, 2018;Oliveira et al, 2018;Prado et al, 2020). Entretanto, a CBC não participou desse cenário de manutenção e ampliação técnico-científico, aparentemente por falta de falta de insumos, carência de profissionais especializados em gestão de coleções vinculados permanentemente ao centro e falta de divulgação científica do acervo.…”

Shallow-water Rissoidae of the genera Alvania Risso, 1826, Haurakia Iredale, 1915, Parashiela Laseron, 1956, Simulamerelina Ponder, 1985 and Subestea Cotton, 1944 (Gastropoda, Caenogastropoda, Rissooidea) from French Polynesia, with the description of a new deep-water genus

“…However, this is clearly a member of Alvania , with its shell devoid of umbilical fissure, with double sculpture (axial and spiral), piriform aperture, continuous and simple peristome, outer lip with robust varix, dome-shaped paucispiral protoconch with spiral sculpture. Alvania valeriae Absãlao, 1993 from off southeastern Espirito Santo State (southeastern Brazil) 38 m depth (Absãlao 1993: 104, 105, figs 1-3; Oliveira et al 2018: 95, fig. 4 I-K), differs from Alvania denseclathrata n. comb.…”