Eualus avinus ( Rathbun, 1899 )

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 75

Eualus avinus ( Rathbun, 1899)

( Fig. 18A)

Spirontocaris avina Rathbun, 1899: 557 ; 1904: 103, fig. 47.

Eualus avinus . — Holthuis 1947: 10. — Kozloff 1974: 166. — Butler 1980: 193, color plate 8E. — Wicksten 1990b: 593. — Chace 1997: 42.— Jensen 2004: 468.

Diagnosis. Rostrum short, not reaching end of second antennular segment, arched over eye, with 12–14 dorsal, 1–2 ventral teeth. First, second segments of antennular peduncle each with spine. Carapace with weak pterygostomian tooth. Pereopods 1–3 with epipods. Pereopods 3–5 slender, with long, slender dactyls; each merus of with 5–7 spines. Abdominal somites 1–3 rounded, 4–5 with posterolateral point, somite 6 elongated. Telson with 3 pairs dorsolateral spines. Male total length 29 mm, female 44 mm.

Color in life. Translucent with blotches of orange on body, appendages ( Butler 1980 color plate 8E).

Habitat and depth. Muddy, sandy bottoms of continental shelf, 46–642 m.

Range. Pribilof Is., Alaska to off Depoe Bay, Oregon. Type locality north of Unalaska , Aleutian Is .