Pleioptygma helenae

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]

Distribution

Honduras.[4]

The type locality is Gorda Bank, Honduras.[1]

Fossil record from Neogene include southeastern USA.[1]

apertural view of the shell of Pleioptygma helenae

Description

The maximum recorded shell length is 123 mm.[5]

The anatomy of the family Pleioptygmatidae is defined according to this the only extant species.

Habitat

Minimum recorded depth is 37 m.[5] Maximum recorded depth is 150 m.[5]

References

  1. 1 2 3 4 Quinn J. F. Jr. (1989). "Pleioptygmatidae, a new family of mitriform gastropods (Prosobranchia: Neogastropoda)". The Nautilus 103(1): 13-19.
  2. ↑ Radwin G. E. & Bibbey L. J. (1972). "A new mitrid from the western Atlantic". Transactions of the San Diego Society of Natural History 17(7): 95-99.
  3. ↑ Pleioptygma helenae (Radwin & Bibbey, 1972).  Retrieved through: World Register of Marine Species on 04/24/10.
  4. ↑ Petuch E. J. (1980). "A new Falsilyria (Volutidae) and a new Conus (Conidae) from Roatan Island, Honduras (Atlantic)". The Nautilus 64(3): 115-118.
  5. 1 2 3 Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. doi:10.1371/journal.pone.0008776.

Further reading

  • Quinn J. F. Jr. & Lyons W. G. (1984). "A partial description of the anatomy of Pleioptygma helenae (Gastropoda: Neogastropoda)". American Malacological Bulletin 3(1): 97-98.
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