New records of Catenicella de Blainville, 1830 (Catenicellidae: Cheilostomata: Ascophora) in Rio de Janeiro State, Brazil

摘要

Although there are six species of Catenicellidae recorded in Brazil, the three Catenicella species described here are the first mention of the genus in the state of Rio de Janeiro, enlarging their distribution along the Brazilian coast. Previously, C. contei was recorded in Pernambuco and S?o Paulo, while C. elegans was recorded in the states of Alagoas and S?o Paulo. The recent identification of these species in the state of Rio de Janeiro suggests two possibilities: it is difficult to find them due to small size and cryptic habitat, and/or they represent introduced species.