Porcelain crabs from Brazil (Crustacea: Decapoda: Anomura: Porcellanidae) Author Ferreira, Luciane Augusto De Azevedo Author Melo, Gustavo Augusto Schmidt De text Zootaxa 2016 4092 2 175 194 journal article 10.11646/zootaxa.4092.2.2 210d7273-bbb8-410c-aeb7-222cbd828cfc 1175-5326 261197 00C31F86-103C-4425-B40D-78E7D52AB668 Petrolisthes amoenus (Guérin-Menéville, 1855) ( Fig. 2 D) Porcellana amoena Guérin-Menéville, 1855 , pl. 2, fig. 2 (type-locality: Cuba ). Petrolisthes serratus Henderson, 1888: 107 , pl. 11, fig. 2. Petrolisthes amoenus —Schmitt, 1935: 185. Material examined . Brazil : Ceará—Acaraú, R/V “Almirante Saldanha”, st. 1710a, 02° 33.0 S ,039° 41.5 W , 31 m , 1 male (MZUSP-8948). Paraíba—Proj. Algas, st. 69-b, 4 males , 1 female (MZUSP-11854). Pernambuco—Fernando de Noronha, 1 male (MZUSP-20250). Espírito Santo—Trindade Island , 20°51’791”S, 40°28’422”W, 1 male (MZUSP-20478). Rio de Janeiro—Cabo Frio, Arraial do Cabo, Prainha, 1 female (MNRJ-6476). São Paulo—Proj. Vitória, Ilhota das Cabras, 1 male , 1 ovigerous female (MZUSP-16713). Recognition characters . Carapace rounded, slightly longer than broad, with short setae and transversal rugae on branchial and gastric regions; acute hepatic spine. Front broad, with serrate margin. Inner orbital angle produced into acute spine; outer orbital angle produced into serrate tooth with spine; small supraorbital spine present. Basisischium of antenna with flattened, spine-tipped lobe on mesial margin. Chelipeds equal, granulate; carpus with 4–6 acute teeth on extensor margin, flexor margin with row of spines, short setae; propodus serrate distally on extensor margin, row of spines and short setae proximally on extensor margin. Walking legs pubescent; merus with row of spines on extensor margin; propodus with 4 spines on flexor margin; dactylus with 3 spines on flexor margin. Gonopods present in males. Telson composed of 7 plates. Habitat . On corals, calcareous algae, sponges and under rocks; down to depths of 140 meters (Veloso & Melo 1993). Also found on Halimeda (Chlorophyta) bottoms. Geographic distribution . Western Atlantic—USA, Florida; Mexico , Yucatan; Cuba ; Puerto Rico ; Barbados ; Colombia , Providence and Santa Marta Islands; Curacao and Bonaire ; Venezuela , Los Roques, Cubagua and Gran Roque Islands; Trinidad and Tobago ; and Brazil (Fernando de Noronha and Trindade Islands and from Maranhão to São Paulo). Remarks . This species is additionally recorded from a new locality (Trindade Island ).