Chalarostylis longisetae ( Corbera, 2006 )

Gerken, Sarah, 2018, The Lampropidae (Crustacea: Cumacea) of the World, Zootaxa 4428 (1), pp. 1-192 : 48

Chalarostylis longisetae ( Corbera, 2006)

Hemilamprops longisetae Corbera, 2006: 148 , fig. 3.

Chalarostylis longisetae . — Alberico et al., 2014: 323.

Type material. Holotype: MNHN-Cu992, female. Paratype: MNHN-Cu993, adult male. New Caledonia, 21°0.0’S, 167°58.34’E .

Diagnosis. Carapace, pereon and pleon with few or no setae. Carapace dorsal crest not serrated. Pereopod 1 broken. Telson with 2 pairs lateral setae, with 3 long terminal setae, central seta longest. Adult male with cluster of aesthetascs on antennule main flagellum article 1.

Additional description. Male with pair of penial lobes.

Depth. 1820–1980 m.

Distribution. New Caledonia, 21°0.0’S, 167°58.34’E.

Remarks. This species is quite similar to the other known species of Chalarostylis in carapace shape, telson size, and male morphology, thus despite the missing pereopod 1, it can be assigned to Chalarostylis with reasonable confidence. The most similar species is C. bruunae ; however, in C. bruunae the antennule accessory flagellum is equal to or longer than the first article of the main flagellum and there are 14 setae medially on the uropod peduncle, while in C. longisetus the antennule accessory flagellum is shorter than the first article of the main flagellum and there are only nine setae medially on the uropod peduncle.