Leptalpheus aff. forceps Williams, 1965

Almeida, Alexandre O., Boehs, Guisla, Araújo-Silva, Catarina L. & Bezerra, Luis Ernesto A., 2012, Shallow-water caridean shrimps from southern Bahia, Brazil, including the first record of Synalpheus ul (Ríos & Duffy, 2007) (Alpheidae) in the southwestern Atlantic Ocean, Zootaxa 3347, pp. 1-35 : 15

Leptalpheus aff. forceps Williams, 1965

( Fig. 5 A–D)

Material examined. 1 m, 07.V.2008, Canavieiras, Patipe River, MZUESC 1240.

Comparative material. L. forceps ( Fig. 5 E–G), 1 m, 1 f, 21.IV.2004, North Bridge, Fort Pierce, Florida, USA, MNHN-Na-15682.

Distribution. Western Atlantic—Brazil ( Bahia ) (present study).

Ecological notes. The single specimen was collected from a burrow of unknown host in mud, at a salinity of 3 psu.

Previous records. None.

Remarks. The specimen collected (CL= 2.7 mm) was compared with L. forceps from Florida. The Bahian specimen differed from the Florida specimens in the dentition of the major chela (cf. Figs. 5 D, G) and in the proportions of the articles of the antennular peduncle (cf. Figs. 5 A, E). More material of this possibly undescribed species is needed to confirm its identity.

Figures

FIGURE 5. (A – D) Leptalpheus aff. forceps Williams, 1965, young male (CL = 2.7 mm) (MZUESC 1240), Patipe River, Canavieiras, state of Bahia, Brazil. (A) head and cephalic appendages, dorsal view; (B) head and cephalic appendages, lateral view; (C) left major chela, ventral view; (D) left major chela, lateral view. (E – G) Leptalpheus forceps Williams, 1965, male (E, F) and ovigerous female (G) (CL not measured) (MNHN-Na- 15682), Fort Pierce, Florida, USA. (A) head and cephalic appendages, dorsal view; (B) head and cephalic appendages, lateral view; (C) major chela, lateral view. Scale bars: A, B, E, F = 1 mm; C, D = 0.5 mm.