Hemilamprops pacificus ( Harada, 1959 )

Gerken, Sarah, 2018, The Lampropidae (Crustacea: Cumacea) of the World, Zootaxa 4428 (1), pp. 1-192 : 79

Hemilamprops pacificus ( Harada, 1959)

Lampropoides pacificus Harada, 1959: 243–246 .

Hemilamprops pacificus .— Gamô, 1963: 15.

Type material. Deposition unknown. Nishina and Shimoda, Japan. Not seen .

Diagnosis. Carapace with 1 lateral ridge, without setae, dorsal crest entire. Pleonites without dorsal crest. Telson subequal to length of uropod peduncles, with 3 pairs lateral setae, 5 terminal setae, outermost pair longest, inner pair short. Uropod exopod article 1 0.4 length of article 2. Adult male antenna extending to posterior border of pleonite 5; telson with 3 pairs lateral setae.

Depth. 90 m.

Distribution. Shimoda Bay, Izu Peninsula, Japan, 34°40’N, 138°55’E.

Remarks. Harada (1959) described coloration in this species, with the male being more pigmented than the female. Hemilamprops pacificus can be distinguished from the similar species H. californicus by the proportions of the uropod exopod. In H. pacificus article 1 of the uropod exopod is distinctly shorter than article 2, while in H. californicus article 1 of the uropod exopod is subequal to article 2.