Acanthephyra chacei Krygier & Forss, 1981

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 42

Acanthephyra chacei Krygier & Forss, 1981

( Fig. 9O–P)

Acanthephyra chacei Krygier & Forss 1981: 96 , figs. 1, 2. — Chace 1986: 9. — Wicksten 2002: 135.

Diagnosis. Exoskeleton membranous. Rostrum with 5–9 dorsal teeth, usually one ventral tooth, triangular in shape, descending from gastric region, then ascending past cornea of eye. Eye pigmented. Carapace dorsally carinate, without cervical groove, with strong lateral ridge bifurcating at anterior margin; deep depression marking branchial cavity. Branchiostegal tooth on short rise, not on carina. Antennular peduncle less than 0.5 length of scaphocerite, stylocerite short. Scaphocerite with lateral tooth exceeding blade, blade with mid-longitudinal ridge. Third maxilliped setose, with exopod. All pereopods with exopods. Pereopod 1 chelate, short; merus with 1 or 2 spines. Pereopod 2 chelate, longer than first, merus with 1–6 spines, ischium with 0–7 spines. Pereopod 3 extremely long, dactyl small, simple, with numerous spines on carpus, merus, ischium. Pereopod 4 slender, with 5–17 spines on ischium. Pereopod 5 shorter, dactyl simple, with numerous spines on carpus, merus, ischium. Abdominal somites 3–6 dorsally carinate, each ending in tooth. Telson about as long as uropod, sulcate dorsally, usually armed with 3 pairs dorsolateral spines; with terminal spine flanked by 3 pairs lateral spines. Male carapace length 37 mm, female to 36.7.

Color in life. Scarlet.

Habitat and depth. Bathypelagic, 1500–2400 m.

Range. Southern tip of Alaskan peninsula to off the coast of Oregon. Type locality off Oregon , 44˚45.2' N, 127 ˚ 44.0' W.