(Fig. 18B, C)
Spirontocaris barbata Rathbun, 1899: 556; 1904: 82, fig. 35.
Eualus barbatus. — Holthuis 1947: 10. — Kozloff 1974: 165. — Butler 1980: 190, pl. 5C. — Wicksten 1984b: 246; 1989b: 312; 1990b: 593. — Chace 1997: 42. — Jensen 2004: 468.
Diagnosis. Rostrum moderately deep, reaching beyond antennular peduncle, with 5–8 dorsal, 3–4 ventral teeth. Stylocerite of antennular peduncle reaching about to end of first segment. Carapace with weak suborbital, strong antennal, pterygostomian teeth. Pereopods lacking epipods. Pereopods 3–5 slender, with spinose dactyls. Merus of pereopod 3, with 3–4 spines; pereopod 4, with 4–5 spines; pereopod 5, with 4–5 spines. Pleura of abdominal somites 3–5 rounded, somites 3–5 each with dorsal carina, tooth; somites 4–5 with ventral point. Telson with 3 pairs dorsolateral spines. Male total length 76 mm, female 95 mm.
Color in life. Body with light orange bands and spots (Butler 1980).
Habitat and depth. Soft mud, 82–507 m.
Range. Pribilof Is., Alaska to Santa Monica Bay, California. Type locality off St. George I., Pribilof Is.