Two new species from two genera of the family Ampeliscidae Krøyer, 1842 (Crustacea, Amphipoda) from the Clarion-Clipperton Zone, Pacific Ocean

Ampeliscidae is a species-diverse family that inhabits oceans around the world at depths from the intertidal to the hadal zone of 6500 m. During a series of collection expeditions to the Clarion-Clipperton Zone, a number of specimens of the family Ampeliscidae were sampled from depths ranging from 4097 m to 4275 m. Included in these samples were two species unknown to science, Byblis hortonae sp. nov. and Byblisoides jazdzewskae sp. nov.

Molecular and morphological examination provides descriptions of these species and keys to the deep water Byblis species and the world Byblisoides species.