Sergia phorca ( Faxon, 1893 )

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 31-32

Sergia phorca ( Faxon, 1893)

( Fig. 7 I–K)

Sergestes phorcus Faxon, 1893: 217 . — Burkenroad 1937: 323, figs. 6–7. — Ebeling et al. 1969: 12. — Méndez 1981: 59, pl. 22, figs. 172–176.

Sergestes bisulcatus: Faxon 1895: 210 , pl. 52 [not Sergestes bisulcatus Wood-Mason, 1891 , Indo-West Pacific species].

Sergia phorca . — Hendrickx & Estrada-Navarrete 1989: 110; 1996: 73, fig. 45.

Diagnosis. Exoskeleton smooth and membranous. Rostrum short, with tiny apical tooth. Carapace without supraorbital tooth and hepatic spine, with cervical, gastro-hepatic grooves; suprabranchial carina. Antennular peduncle stout, male with inner flagellum modified as prehensile organ. Scaphocerite with lateral tooth exceeding blade. Third maxilliped longer than first pereopod but shorter than third, dactyl with 8 subsegments. Pereopods 1–3 chelate, slender and setose, pereopods 4, 5 flattened, heavily setose. No organs of Pesta, photophores on ventral surface of body. Ovary of female extending into abdomen. Faint carinae, grooves on lateral surfaces of abdominal somites, somite 6 with dorsal carina ending in small tooth. Telson shorter than uropods, with dorsal groove triangular apex, 2 or 3 pairs dorsolateral spines. Outer margin of outer exopod without setae. Total length 82 mm.

Color in life. Red with purple photophores.

Habitat and depth. Pelagic, 0–1100 m.

Range. Off Santa Catalina I. , California (Velero IV sta. 7299-61, LACM) to Peru. Type locality came from five stations between east of Galapagos Is. (0 ˚ 59' 0" S, 86 ˚ 46' 0" W. Albatross sta. 3401) to south of Guaymas , Gulf of California (Albatross sta. 3437) .