Metacrangon procax ( Faxon, 1893 )

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 116

Metacrangon procax ( Faxon, 1893)

( Fig. 28M)

Sclerocrangon procax Faxon, 1893:199 ; 1895:135, pl. 36.

Crago lomae Schmitt, 1921: 100 , pl. 12, figs. 3, 4.

Crangon lomae . — Wicksten 1980a: 39; 1989b: 313.

Metacrangon lomae . — Zarenkov 1965: 1764. — Wicksten 1989: 303, 304, 313.

Metacrangon procax . — Zarenkov 1965: 1764. — Méndez 1981: 122, figs. 357, 358, pl. 7. — Komai 1997: 672, fig. 10. — Wicksten & Hendrickx 2003: 69.

Diagnosis. Rostrum short, apex rounded. Anterior median tooth of carapace acutely pointed, nearly erect, nearly as long as rostrum, small denticle between anterior, posterior median carapace teeth. Carapace with antennal, branchiostegal teeth, hepatic, submedian teeth with supporting carinae. Eye pigmented. First, second segments of antennular peduncle with lateral tooth each. Scaphocerite with lateral tooth much longer than blade, separated from it by deep incision for about distal 0.25 of length. Third maxilliped setose, with exopod. Pereopod 1 subchelate, with dactyl closing obliquely against propodus. Pereopod 2 slender, chelate. Pereopod 3 slender with simple dactyl. Pereopods 4, 5 stout, setose, with flattened dactyls. Abdominal somites 1, 2 with weak dorsal carinae, somites 3–5 with carinae on at least part of dorsal midline, somite 6 with 2 carinae. Ventral surfaces of abdominal somites sexually dimorphic: male with abdominal pleura 1–3 with prominent acute median tooth, somite 4 with blunt tooth, somite 5 with low tubercle, somite 6 ventrally unarmed; female with abdominal somites unarmed except for small tubercle between pleopods of somite 5. Telson with 3–4 pairs dorsolateral spines, apex acute, exceeding inner branch of uropods. Male total length 35 mm, female 44 mm.

Color in life. Light brown ( Méndez 1981, pl. 57).

Habitat and depth. Continental slope, 800–1629 m.

Range. San Miguel I., California to off Atico, Peru. Type locality not specified; type specimens came from four stations taken off Malpelo I., off Acapulco, and in Gulf of California .