Pleioptygma helenae Temporal range: Neogene–Recent[1] |
|
---|---|
shell of Pleioptygma helenae | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
(unranked): | clade Caenogastropoda clade Hypsogastropoda clade Neogastropoda |
Superfamily: | Muricoidea |
Family: | Pleioptygmatidae |
Genus: | Pleioptygma |
Species: | P. helenae |
Binomial name | |
Pleioptygma helenae (Radwin & Bibbey, 1972)[2] |
Pleioptygma helenae is a species of sea snail, a marine gastropod mollusk in the family Pleioptygmatidae.[3]
It is the only known living species in this genus and the only extant species in the family Pleioptygmatidae.[1]
Contents |
The type locality is Gorda Bank, Honduras.[1]
Fossil record from Neogene include southeastern USA.[1]
The maximum recorded shell length is 123 mm.[5]
The anatomy of the family Pleioptygmatidae is defined according to this the only extant species.
Minimum recorded depth is 37 m.[5] Maximum recorded depth is 150 m.[5]