Neosergestes consobrinus ( Milne, 1968 )

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 28-30

Neosergestes consobrinus ( Milne, 1968)

( Fig. 6O–R)

Sergestes consobrinus Milne, 1968: 26 , figs. 5–9. — Walters 1976: 813. — Judkins 1978: 16, figs. 9–11 (extensive synonymy). —

Hendrickx & Estrada-Navarrete 1989: 108; 1996: 45, fig. 27. — Pérez Farfante & Kensley 1997: 196. — Wicksten 2002: 131. Neosergestes consobrinus . — Judkins & Kensley 2008: 76.

Diagnosis. Exoskeleton fragile. Rostrum short, with single terminal tooth barely reaching beyond base of eyestalk. Carapace with hepatic spine, surpaorbital tooth, branchial, hepatic, anterior ridges; weak cervical, postcervical grooves. Eye pigmented. Antennular peduncle long, slender; basal segment wider than other segments. Scaphocerite long, tapering, with small terminal point. Third maxilliped longer, stouter than pereopod 3, propodus with 2 subsegments, dactyl with 6 subsegments. Pereopods 1–3 slender, increasing in size posteriorly, with weak chelae. Pereopods 4, 5 laterally flattened, setose. Organs of Pesta consisting of single anterior midventral organ, 3 pairs located anterolaterally, midlaterally, posterolaterally. Abdominal pleura with rounded margins bearing setae, sixth somite ending in weak point. Telson shorter than uropods, without spines, with rounded apex. Outer uropod with setae along entire outer margin. Total length 18 mm.

Color in life. Partly red, especially cephalothorax, and partially transparent.

Habitat and depth. Pelagic, 20–400 m, maximal abundance at 120 m. Walters (1976) reported that the majority of captures of this species off the Hawaiian Is., were made during shallow night tows from the surface to 75 m. The shrimp was broadly distributed from 450 to 725 m during daylight hours.

Range. California Current and central Pacific between 41 ˚ ( northern California ) and 17 ˚ N (state of Michoacan, Mexico); northwestern Pacific. Type locality off southern California (33 ˚ 44' N, 124 ˚ 53' W) .

Remarks. This species has been confused with Sergestes edwardsi Kröyer, 1855 (now considered to inhabit the Atlantic). Judkins (1978) provided a more detailed description.