Urocaris longicaudata Stimpson, 1860

Urocaris longicaudata — Stimpson, 1860:39; Rathbun, 1900:155; Bruce, 2007b:63; Román-Contreras & Martínez-Mayén, 2010:47.

Periclimenes (Periclimenes) longicaudatus — Kemp, 1922:141; Holthuis, 1951:26; Nizinski, 2003:104. Periclimenes longicaudatus — Schmitt, 1935:164; Chace, 1972:37; Coelho & Ramos, 1972:147; Ramos-Porto, 1980:298; Williams, 1984:86; Abele & Kim, 1986:16; Martinez-Iglesias, 1986:32; Ramos-Porto & Coelho, 1998:338; Coelho et al., 2006:50; Coelho Filho, 2006:7; Almeida et al., 2007:11; Machado et al., 2010:120.

Diagnosis. Rostrum straight, short and rather high, reaches the end of second segment of antennular peduncle, dorsal margin with 7 to 9 teeth, first two teeth placed behind the orbit, ventral margin straight, with 1 or 2 teeth, small tooth close to the apex. Basal segment of antennular peduncle with stylocerite slender, not reaches the half this segment, outer margin convex, with anterolateral strong spine overreaching the anterior margin but not reaches the half of second segment of antennular peduncle. Scaphocerite with distal tooth not overreaching the apex of lamella. Carapace with hepatic spine. Mandible without palp. First pereopods slender, almost reaches the end of scaphocerite, fingers unarmed and smaller than palm. Second pereopods equal in shape end size and distinctly stronger than the first, overreaching the scaphocerite with the palm, finger smaller than palm. Third to fifth pereopods with bifid dactyli. Abdomen with pleura of all somites rounded, pleura of third somite with a pronounced hump dorsal. Telson with 2 pairs of dorsal spines and 3 pairs of spines on posterior margin.

Distribution. Western Atlantic: USA (North Caroline to Florida) Mexico, Bermudas, Bahamas, Cuba (Batabanó Gulf), Jamaica, Puerto Rico, Virgin Islands; Brazil (Pará to São Paulo and Santa Catarina) (Figure 24). (Martínez-Iglesias & García Raso, 1999; Nizinski, 2003; Barba et al., 2005; Almeida et al., 2007; Román-Contreras & Martínez-Mayén, 2010; Machado et al., 2010).

Material examined. CEARÁ. Fortaleza, 6 indeterminate, (MNRJ-1085); BAHIA. Abrolhos, Ilha de Santa Bárbara, 3 males, 8 females, (MNRJ-1087); ESPÍRITO SANTO. Vila Velha, 5 ovigerous females, (MZUSP-8962).

Ecological notes. The species is found between shallow waters and 11m 72 m deep, on sandy bottoms with meadows of soft algae or rocky bottoms with corals and sponges (Martinez-Iglesias, 1986; Ramos-Porto & Coelho, 1990).