Calocarides quinqueseriatus (Rathbun, 1902)

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 131

Calocarides quinqueseriatus (Rathbun, 1902)

( Fig. 31B)

Calastacus quinqueseriatus Rathbun, 1902a: 887 ; 1904: 151, fig. 91. — Schmitt 1921: 113, fig. 76. — Wicksten 1980c: 362. — Komai 2000: 229.

Calocaris quinqueseriatus . — Hart 1982: 50, fig. 11. — Wicksten 1989b: 312. — Kensley 1996a: 61, figs. 4, 5 (extensive synonymy).

Calocarides quinqueseriatus . — Sakai & de Saint Laurent 1989: 44. — Hendrickx 1995b: 157.

Diagnosis. Rostrum flattened, median carina extending from mid-rostrum posteriorly, armed with 2–6 spines; lateral margins with 3–7 spines, prolonged as ridges on gastric area; these ridges separated by 2 short, spined ridges, forming 5 ridges in all. Carapace smooth, with deep cervical groove. Antennular peduncle short but longer than rostrum. Antennal peduncle with short thorn-like projections on second, third segments. Third maxilliped with teeth on inferior margin of broadest segment. Major chelipeds unequal in size, but similar in shape. Major chela with slight gape between fingers, minor chela without gape. Surfaces of hand granulate, upper margin of palm with teeth, teeth, granules also on carpus and merus. Pereopod 2 chelate, with distinct spines on merus, ischium. Other pereopods slender, with simple, setose dactyls. Abdominal pleura rounded. Telson with median tooth, toothed lateral margins, 2 toothed dorsal ridges, curved posterior margins,.Toothed ridge on endopod of uropod. Abdominal somite 1without pleopods. Other pleopods biramous. Sexes separate. Total length 73 mm.

Color in life. Not reported, but preserved specimens were pale.

Habitat and depth. Mud, 288–2200 m.

Range. Sea of Okhotsk to off San Nicolas I., California; Gulf of California off Angel de la Guardia I. and off Sinaloa, Mexico. Type locality off San Luis Obispo Bay, California. Komai (2000: 229) speculated that the specimens from the Sea of Okhotsk "may represent a distinct species.”

Remarks. In California, this species was collected most often on the upper continental slopes along the mainland instead of along the offshore islands (Wicksten 1980).