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 Mesolamprops bispinosus Given, 1964 Mesolamprops bispinosus Given, 1964: 289–291 , fis. 1A–K, 2A–I. Type material. Holotype : adult male, AHF 5917 , held by LACM . Paratype : female, held by LACM . Not seen. Off the coast of Los Angeles , 33°38’45”N , 118°14’45”W . Diagnosis . Carapace without lateral ridges, dorsal crest entire. Pleon not including telson shorter than carapace and pereonites together. Telson with 2 pairs lateral setae, 5 terminal setae,outer pair longest, inner pair short. Adult male antennal flagellum “long”, extending at least to the mid–pleon; pleopod rami unequal, uniarticulate, lateral ramus smaller than medial ramus. Depth . 30–100 m . Distribution . Eastern Pacific continental shelf, south of Point Conception. Remarks . The most similar species is Mesolamprops japonicus ; however, in M. japonicus the pleon (not including the telson) is longer than the carapace and pereonites together, while in M. bispinosa the pleon (not including the telson) is shorter than the carapace and pereonites together.