Pleurocera

Pleurocera is a genus of freshwater snails with an operculum, aquatic gastropod mollusks in the family Pleuroceridae.[3]

Pleurocera
Apertural view of a shell of Pleurocera acuta
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
clade Sorbeoconcha
Superfamily:
Cerithioidea
Family:
Pleuroceridae
Genus:
Pleurocera

Synonyms[2]

Oxytrema Rafinesque, 1819
Ceriphasia Swainson, 1840
Telescopella Gray, 1847
Melasma H. Adams & A. Adams, 1854
Strephobasis Lea, 1861
Trypanostoma Lea, 1862
Goniobasis Lea, 1862
Macrolimen Lea, 1863
Strepoma Haldeman, 1863

Pleurocera is the type genus of that family.

Distribution

All members of the genus Pleurocera are native to eastern North America.[2]

Description

All of the species in this genus have thick-walled high-spired shells, and some attain a length of over 4 cm. The shape of the shell is elongate-conic or cylindrical.[2] The sculpture of the shell is often carinate or costate.[2] The shell of larger species sometimes develops sculpturing and a small siphonal canal or siphonal notch at the base of the aperture.[2]

Opercula are paucispiral and corneous, but may be vestigial in some species, not completely closing the aperture.

The soft parts of the animal usually have a gray or brown coloration, commonly speckled with orange. The similar genus Juga has a seminal receptacle, but Pleurocera has no seminal receptacle.[2]

Species

Species within the genus Pleurocera include: (brackets needs to be checked, authorities according to the IUCN Red List may be incorrect)

Species brought into synonymy
  • Pleurocera costulatum Fuchs, 1870: synonym of † Goniochilus costulatus (Fuchs, 1870)
  • Pleurocera kochii Fuchs, 1870: synonym of † Goniochilus kochii (Fuchs, 1870)
  • Pleurocera radmanesti Fuchs, 1870: synonym of † Prososthenia radmanesti (Fuchs, 1870)

Ecology

Most species inhabit larger rivers.[2]

Pleurocera snails are dioecious.[2]

References
  1. Rafinesque (1818). Amer. mon. Mag. 3(5): 355.
  2. Dillon R. T. (2011). "Robust Shell Phenotype is a Local Response to Stream Size in the Genus Pleurocera (Rafinesque, 1818)". Malacologia 53(2): 265-277. doi:10.4002/040.053.0205.
  3. Neubauer, Thomas A. (2014). Pleurocera Rafinesque, 1818. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=820483 on 2014-11-25
  4. Melville R. V. (1981). "Opinion 1195. Pleurocera Rafinesque, 1818 (Gastropoda): The type species is Pleurocerus acutus Rafinesque in Blainville, 1824". Bulletin of Zoological Nomenclature 38: 259–265.
  5. "Pleurocera catenaria catenaria (Say 1822)". FWGNA: Freshwater Gastropods of North America, accessed 21 February 2013.
  6. "Pleurocera catenaria dislocata (Ravenel 1834)". FWGNA: Freshwater Gastropods of North America, accessed 21 February 2013.
  7. "Pleurocera canaliculata (Say 1821)". FWGNA: Freshwater Gastropods of North America, accessed 21 February 2013.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.