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 Chalarostylis elegans Norman, 1879 Chalarostylis elegans Norman, 1879: 65 .—Gerken & McCarthy, 2007: 150–153, figs 1–2. Type material. Holotype : NHM 1911.11.8.6024, adult male. Off Rockall, Porcupine Bight. Other material. Female, NHM 2006.1187; 2 adult males, MNHN CU-477 ; 1 subadult female, MNHN CU- 459 . Diagnosis . Carapace, pereon and pleon with few or no setae. Carapace dorsal crest serrated. Pereopod 1 with serrate carinae on carpus and propodus. Telson with 3 pairs of lateral setae, with 3 terminal setae. Adult male antennule main flagellum article 1 with cluster of aesthetascs. Telson with 2 pairs of lateral setae. Additional description . Male with pair of penial lobes. Depth . 199–3178 m . Distribution . Western North Atlantic, 34°20’– 54°21.6’N , 4°50’– 27°00.2’W . Remarks . Chalarostlyis elegans is similar to C. guanchi , but C. guanchi is covered with long setae on the carapace, pereon and pleon, while C. elegans has only a few setae on the anterior part of the carapace. In addition, in C. elegans the dorsal crest is serrated while in C. guanchi the dorsal crest is entire.