The Lampropidae (Crustacea: Cumacea) of the World Author Gerken, Sarah text Zootaxa 2018 2018-06-01 4428 1 1 192 journal article 22652 10.11646/zootaxa.4428.1.1 e10e53f2-0e1b-46f6-8b0f-af19d5529711 1175-5326 3769771 2419A7F0-5AED-47EC-86BB-06AADB2A4BD9 Hemilamprops gracilis Hart, 1930 Hemilamprops gracilis Hart, 1930: 4 , fig. 1A–F. Type material. Holotype : BCPM 978–112 – 1 , female. Rocky Bay , Vancouver Island , Canada . Not seen. Diagnosis . Carapace with one entire lateral ridge, without setae, dorsal crest entire. Telson 0.9 length of uropod peduncles, with 4–5 pairs lateral setae, 3 equal terminal setae. Uropod exopod article 1 2.0 length of article 2. Adult male unknown. Depth . 120–200 m . Distribution . Vancouver Island, East Pacific. Remarks . The most similar species to H. gracilis are H. chilensis , H. pterini and H. uniplicatus . Hemilamprops gracilis is differentiated from these species by the telson being shorter than the uropod peduncles, with more than three pairs of lateral setae. In comparison, in H. uniplicatus the telson is equal to or longer than the uropod peduncles, while in both H. chilensis and H. pterini there are three or fewer pairs of lateral setae on the telson.