Unraveling another of the 'Big Five': new species and records of Cerithiopsidae from Brazil (Caenogastropoda: Triphoroidea).

Despite being one of the most speciose marine mollusc families in the world, knowledge about the richness and distribution of Cerithiopsidae in Brazil is very limited. The present study aims to revise the occurrence of species of this family from Brazil, based on the examination of specimens in malacological collections obtained through several expeditions and surveys in the last years. All previous literature records of species from Brazil were checked, and the occurrence of Cerithiopsis gemmulosa, Cerithiopsis lata, Cerithiopsis io, Cerithiopsis fusiformis, Cerithiopsis capixaba, Cerithiopsis balaustium, Cerithiopsis aimen, Cerithiopsis prieguei, Cerithiopsis flava and Seila adamsii are confirmed; for these species, new information is presented regarding their distribution and shell morphology.