Microgloma Sanders Allen 1973 (Nuculanidae) and Pristigloma Dall 1900 (Pristiglomidae) (Pelecypoda) in the Campos Basin off Brazil

摘要

As a secondary result of oil prospecting in Brazil, samples from the Campos Basin continental slope became available. In these samples, specimens of the genera Microgloma Sanders & Allen, 1973 and Pristigloma Dall, 1900 were found. This contribution provides the southernmost record of the genus Microgloma, the first record of Microgloma mirmidina (Dautzenberg & Fischer 1897) from the western Atlantic, the descriptions of Microgloma macaron >sp. n. and Microgloma nhanduti >sp. n.as new species, and the shallowest record of Pristigloma alba Sanders & Allen 1973.