Ostracod genera

Gigantocypris, sometimes known as giant ostracod or giant seed shrimp, is a genus of ostracod crustaceans in family Cypridinidae, and among the most well-known members of the class Ostracoda (together with Vargula hilgendorfii). Its members are extremely large for ostracods, measuring up to across, have a globular shape, are typically semi-transparent orange or reddish, and have a large pair of mirror-like eyes that are used to locate their small animal prey. They are found worldwide in dark, deep and cold oceans.

Spelaeoecia is a genus of crustaceans in the family Thaumatocyprididae. One species, the Bermudan endemic S. bermudensis, is listed as critically endangered on the IUCN Red List. It contains the following species: Spelaeoecia barri Kornicker in Kornicker & Barr, 1997 Spelaeoecia bermudensis Angel & Iliffe, 1987 Spelaeoecia capax Kornicker in Kornicker, Yager & Williams, 1990 Spelaeoecia cubensis Kornicker & Yager, 1996 Spelaeoecia hox Kornicker, Iliffe & Harrison-Nelson, 2007 Spelaeoecia jamaicensis Kornicker & Iliffe, 1992 Spelaeoecia mayan Kornicker & Iliffe, 1998 Spelaeoecia parkeri Kornick

Conchoecia is a genus of ostracods in the subfamily Conchoeciinae.

Discoconchoecia is a genus of ostracods in the subfamily Conchoeciinae.

Vargula is a genus in the Cypridinidae. The genus contains bioluminescent species. Vargula hilgendorfii (formerly Cypridina hilgendorfii), native to Japan, is likely the best-studied Vargula. Some species currently within Vargula (e.g. Vargula tsujii) may be split into their own genus.