Talorchestia Dana, 1852

Lowry, J. K. & Bopiah, Arundathi, 2013, The talitrid amphipods of Tonga (Crustacea, Amphipoda, Talitridae), Zootaxa 3681 (4), pp. 347-370 : 353

Talorchestia Dana, 1852

Talorchestia Dana, 1852: 310 .—1853: 851.— Stebbing, 1906: 543 (partim.).— Stephensen, 1948: 7 (partim.).— Hurley, 1956: 359 (in part.).— Morino & Miyamoto, 1988: 91.— Miyamoto & Morino, 1999: 170.— Lowry & Springthorpe, 2009: 905.

Type species. Talitrus gracilis Dana, 1852 .

Included species. Talorchestia includes 7 species (sensu stricto). T. brucei Lowry & Springthorpe, 2009 ; T. gracilis ( Dana, 1852) ; T. martensii ( Weber, 1892) ; T. mindorensis Oleröd, 1970 ; T. morinoi Othman & Azman, 2007 ; T. spinipalma ( Dana, 1852) ; T. terraereginae Haswell, 1880 .

Diagnostic description (based on male). Antenna 1 short, rarely longer than article 4 of antenna 2 peduncle. Antenna 2 peduncular articles slender or slightly incrassate; article 3 without plate or process ventrally. Mandible left lacinia mobilis 5-dentate. Maxilliped palp article 2 distomedial lobe well developed, article 4 fused with article 3. Gnathopod 1 subchelate, parachelate; posterior margin of carpus and propodus each with lobe covered in palmate setae. Gnathopod 2 subchelate; posterior margin of merus, carpus and propodus each without lobe covered in palmate setae; dactylus not modified distally. Pereopods 3–7 cuspidactylate. Pereopod 4 dactylus thickened proximally with a notch midway along posterior margin. Pereopods 6–7 not sexually dimorphic. Pleonites 1–3 without dorsal spines. Pleopods all well developed. Epimera 1–3 without stridulating organ just above ventral margins. Uropod 1 outer ramus without marginal robust setae. Uropod 3 ramus shorter than peduncle. Telson apically incised, at least 6 robust setae.

Remarks. Since the revision of Morino & Miyamoto (1988), Serejo (2009) has synonymised Talorchestia palawanensis Morino & Miyamoto, 1988 with T. terraereginae Haswell, 1880 and two species, T. brucei Lowry & Springthorpe, 2009 and T. morinoi Othman & Azman, 2007 , have been described.