Genus Exiloberingius n. gen.
urn:lsid:zoobank.org:act: 22EAA94C-CE59-4729-86BF-39B49BF46D57
Diagnosis: shell pyriform, canal short, shell extremely thin, fragile, reinforced with thicker interior deposition along the columella and final lip; periostracum fibrous in thick axial ridges below suture; axial and spiral sculpture weak or lacking.
Type species: Exiloberingius fragilis McLean & Clark, n. sp. (HD).
Remarks: differs from all other Beringiinae by the excessively thin, poorly calcified shell, and the thick, fibrous periostracum. One Aleutian species.