Metacrangon munita (Dana, 1852)

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 115-116

Metacrangon munita (Dana, 1852)

( Fig. 28K, L)

Crangon munitus Dana, 1852: 536 ; 1855: pl. 33, fig. 5.

Crangon munita . — Rathbun 1904: 127, fig. 67. — Kozloff 1974: 165.

Crago munita . — Schmitt 1921: 98, fig. 66. — Johnson & Snook 1927: 314.

Metacrangon munita . — Zarenkov 1965: 1764. — Butler 1980: 119. — Jensen 1995: 39, fig. 56.

Diagnosis. Body short, exoskeleton thick rugose. Rostrum shorter than eye, apex rounded. Carapace with 2 median teeth, submedial, hepatic teeth strong with supporting carinae; branchiostegal strong, pterygostomian weak; gastric region depressed. Eye short, pigmented. First, second segments of antennular peduncle broad, third very short; stylocerite short. Scaphocerite with blunt blade exceeding lateral tooth, basicerite with 2 lateral teeth. Third maxilliped setose, with exopod. Pereopod 1 stout, subchelate, carpus with distal tooth, dactyl when flexed obliquely transverse. Pereopod 2 long, slender, chelate. Pereopod 3 long and slender, dactyl slender, simple. Pereopods 4, 5 stout, setose, dactyls flattened. Pleura of abdominal somites 1–4 rounded, pleuron of somite 6 with 2 dorsal median carinae, strong posterodorsal tooth, flared posteroventral parts. Telson with median groove, 2 pairs dorsolateral spines, slightly longer than uropods. Male total length 33 mm, female 48 mm.

Color in life. Bases of antennae, most of carapace, anterior half of abdomen china white; rest of carapace, abdomen dark brown. Tail fan ending in mottled white band ( Jensen 1995).

Habitat and depth. Continental shelf, on mixed sand and shell, 13–230 m.

Range. Port Etches , Alaska to San Miguel I., California. Type locality Puget Sound .