Pontoniinae (Crustacea: Decapoda: Caridea) from Brazil with taxonomic key Author Vieira, Rony R. R. Author Ferreira, Rodrigo S. Author D’Incao, Fernando text Zootaxa 2012 3149 1 38 journal article 45720 10.5281/zenodo.279517 9a013bae-8524-49ab-9627-88269911cc22 1175-5326 279517 Periclimenaeus pearsei ( Schmitt, 1932 ) Coralliocaris pearsei — Schmitt, 1932 :123 . Periclimenaeus pearsei — Holthuis, 1951 :93 ; Chace,1972 :29 ; Abele & Kim,1986 :15 ; Ramos-Porto & Coelho, 1998 :337 ; Coelho et al. , 2006:50; Santos et al. , 2008 :162 . FIGURE 11. Distribution of Periclimenaeus pearsei (Schmitt, 1932) . Diagnosis. Rostrum very short and directed downwards not overreaching eyes. Dorsal margin with 3 to 5 teeth placed in advance of the posterior limit of orbit, ventral margin convex and unarmed. Basal segment of antennular peduncle with stylocerite short, broad and acute, not reaches the half this segment; a anterolateral spine almost reaches the half of second segment of antennular peduncle. Scaphocerite with a distal tooth not reaches the apex of lamella. Carapace with antennal spine. Mandible without palp and incisor process very reduced in length. First pereopods overreaching scaphocerite with part of carpus, fingers are slightly shorter than palm. Second pereopods strongly unequal. Major pereopod with fingers strongly curved inwards and smaller than palm, dactylus with broad teeth. Minor pereopod with finger smaller than palm, dactylus with small teeth on proximal margin. Third to fifth pereopods with bifid dactyli. Telson with 2 pairs of dorsal spines and 3 pairs of spines on posterior margin. Distribution. Western Atlantic: USA (Florida [Dry Tortugas ]), Brazil (Maranhão) ( Figure 11 ). ( Holthuis, 1951 ; Coelho et al ., 2006). Material examined. None. Ecological notes. The species is found in bottom gravel and in association with black sponges ( Sponges offinalis ) in depths between 46 and 52 m ( Holthuis, 1951 ; Ramos-Porto & Coelho, 1990 ).