This is the first comprehensive taxonomic review of the family Brachyscelidae. The family is currently mono-generic following the review of Zeidler (2016). There are 17 nominal species referable to the genus Brachyscelus in the literature including two

Hyperiid amphipods are pelagic crustaceans that live associated with gelatinous zooplankton including medusae, ctenophores, siphonophores, and salps. Standard plankton sampling disrupts natural associations, so the most reliable way to determine an association

Two specimens of pandeid species, Eutiara decorata Berberian, Michenet and Goy, 2021 were collected from Kumejima Island in Okinawa Prefecture, Japan. These specimens with a small white apical process were not yet fully-grown adults. A hyperiid amphipod,