Elacatinus figaro Sazima, Moura & Rosa, 1997 (Gobiiformes: Gobiidae): Distribution extension of a Brazilian endangered endemic reef fish with comments on south-western Atlantic Ocean biogeography

摘要

Background A new record for Elacatinus figaro , an endangered Brazilian species, is documented for Pedra do Sal, Piauí coast. We present new data about its distribution, discussing on the limits of the Brazilian Province and commenting on the IUCN criteria for evaluation on threatening status. Results Five specimens of E. figaro were collected about 550?km northward from its previously known boundary, overtaking the expectations around its real distribution as presented in the original description. Conclusions Results from E. figaro range expansion and new records of species in Brazilian coast fit the hypothesis presented in Floeter et al. (J Biogeogr 35: 22-47, 2008) of a Brazilian Zoogeographic Province, also assigned by Briggs & Bowen (J Biogeogr 39: 12-30, 2012) on a review of Marine Zoogeographic Provinces.