New Records Of Bentharca Asperula (dall, 1881) (mollusca, Bivalvia, Arcidae) From Brazil [novos Registros De Bentharca Asperula (dall, 1881) (mollusca, Bivalvia, Arcidae) Para O Brasil]

Specimens of Bentharca asperula (Dall, 1881) were obtained from deep waters of the coasts of the Rio de Janeiro and São Paulo States, and their shells described, illustrated and compared with descriptions and illustrations obtained from the literature. This species has a small strongly inequilateral shell, trapezoidal in outline and expanded ventro-posteriorly; their umbos are placed at about 1/3 of the anterior length of their straight hinge line. The external sculpture consists of irregular spaced concentric ridges, intercepted by fine radiating striae; the periostracum is hairy, forming a cover as a thatch. Hinge teeth are small, disposed in two series interrupted by the ligament. With this finding of living specimens from the Bacia de Campos, the distribution of B. asperula can now be extended in the Brazilian coast, confirming its wide spread in the Atlantic Ocean.94281283Abbott, R.T., (1974) American Seashells, , 2 ed. Van Nostrand Reinhold Co., New YorkAbsalão, R.S., Caetano, C.H.S., Pimenta, A.D., Novas ocorrências de gastrópodes e bivalves marinhos do Brasil (Mollusca) (2003) Rev. Bras. De Zool, 20 (2), pp. 323-328Amaral, A.C.Z., Rizzo, A.E., Arruda, E.P., (2006) Manual De Identificação Dos Invertebrados Marinhos Da Região Sudeste-sul Do Brasil, , Editora USP, São PauloKnudsen, J., The deep sea Bivalvia (1967) Scient. Rep. John Murray Exped, 11, pp. 235-343Knudsen, J., The systematics and biology of abyssal and hadal Bivalvia (1970) Galathea Rep, 11, pp. 7-241Oliveira, C.D.C., Absalão, R.S., Primeiro registro de Mendicula ferruginosa, Kelliella atlantica e Lyonsiella subquadrata (Mollusca, Pelecypoda) para águas brasileiras (2007) Biociências, 15 (1), pp. 63-67Oliveira, C.D.C., Absalão, R.S., The genera Limatula and Limea (Mollusca, Pelecypoda, Limidae) from deep waters off Brazil (2008) Zootaxa, pp. 48-58Oliver, G., Allen, J.A., The functional and adaptive morphology of the deep-sea species of the Arcacea (Mollusca: Bivalvia) from the Atlantic (1980) Phil. Trans. Roy. Soc. London, B, Biol. Sci, 291 (1045), pp. 45-76Prado, A.C.G., Nascimento, J.C.B., Bentharca asperula (Dall, 1881) - Arcidae, Anadarinae - Nova ocorrência para a costa brasileira (Recife/ Pernambuco) (1994) Publ. Ocas. Conquil. Brasil, 9, pp. 1-2Rios, E.C., (1994) Seashells of Brazil, , 2 ed. Museu Oceanográfico Prof. E. C. Rios da Fundação Universidade do Rio Grande, Rio GrandeSimone, L.R.L., A new species of Acar (Bivalvia, Arcidae) from São Pedro e São Paulo Archipelago, Brazil (2009) Novapex, 10 (1), pp. 9-1