Mesolamprops abyssalis Reyss 1978

• Main Author: Gerken, Sarah
• Format: Other/Unknown Material
• Language: unknown
• Published: 2018
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Cumacea; Lampropidae; Mesolamprops; Mesolamprops abyssalis; Seta; North Atlantic
• Online Access: https://zenodo.org/record/3799374; https://doi.org/10.5281/zenodo.3799374

Mesolamprops abyssalis Reyss, 1978a Mesolamprops abyssalis Reyss, 1978a: 7–10, fig. 3A–F, fig. 4A–G. Type material. Deposition unknown. Gay Head, Bermuda Transect, 36°23’N, 67°58’W. Not seen. Diagnosis. Carapace without lateral ridges, dorsal crest entire. Pleon not including telson equal to carapace and pereonites together. Telson without lateral setae, 5 terminal setae. Adult male antennal flagellum short, not extending to end of pereon; pleopod rami equal, uniarticulate. Depth. 4667–4862 m. Distribution. North Atlantic, 35– 37°N, 63– 68°W. Remarks. The only other species in Mesolamprops that have five terminal setae on the telson are M. bispinosus and M. japonicus, but in M. abyssalis the terminal setae are nearly equal in the female, and in the male the central seta is the longest. However, in M. bispinosa and M. japonicus the outer most pair of terminal setae are the longest, and the inner pair are shorter than the central seta. In addition, the pseudorostrum is distinctly produced in M. abyssalis, while M. bispinosa and M. japonicus hasve no obvious anteriorly projecting pseudorostrum. Published as part of Gerken, Sarah, 2018, The Lampropidae (Crustacea: Cumacea) of the World, pp. 1-192 in Zootaxa 4428 (1) on pages 92-93, DOI:10.11646/zootaxa.4428.1.1, http://zenodo.org/record/3769771