''Pseudococculina'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of
sea snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...
s, marine
gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
mollusk
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...
s in the
family
Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
Pseudococculinidae
Pseudococculinidae is a family of small sea snails or false limpets, marine gastropod mollusks in the superfamily Lepetelloidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).Gofas, S. (2012). Pseudococculinidae. Accesse ...
.
Description
The white shell has a patelliform shape with a posterior, inclined
apex and a compressed, subspiral nucleus. Inside it has a porcellaneous, muscle-scar horseshoe-shaped, interrupted over the head.
The animal has a plumate gill, at the right side of the head. The right tentacle is thickened. There are two epipodial (i.e. situated in the lateral grooves between foot and mantle) filaments at the posterior part of the foot. The
radula
The radula (, ; plural radulae or radulas) is an anatomical structure used by molluscs for feeding, sometimes compared to a tongue. It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food ...
has large rhachidian teeth, with the cusp wanting or very obsolete. The fïrst lateral teeth are triangular, followed by 3 smaller, contorted laterals, with distinct
cusps, a large cusped fifth lateral, and numerous uncini.
Species
Species within the genus ''Pseudococculina'' include:
* ''
Pseudococculina granulata
''Pseudococculina granulata'' is a species of small sea snail, a marine gastropod mollusk in the family Pseudococculinidae, the false limpets.Rosenberg, G. (2012). ''Pseudococculina granulata'' Schepman, 1908. Accessed through: World Register of ...
''
Schepman, 1908
* ''
Pseudococculina gregaria''
B.A. Marshall, 1986
* ''
Pseudococculina rimula''
Simone & Cunha, 2003
* ''
Pseudococculina rosea''
Habe, 1952
* ''
Pseudococculina rugosoplicata''
Schepman, 1908[Bouchet, P. (2012). ''Pseudococculina rugosoplicata'' Schepman, 1908. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=579371 on 2012-11-01]
* ''
Pseudococculina subcingulata''
(Kuroda & Habe, 1949)
;Species brought into synonymy:
* ''Pseudococculina concentrica''
Thiele, 1909: synonym of ''
Amphiplica concentrica''
(Thiele, 1909)
* ''Pseudococculina gradata''
B.A. Marshall, 1986: synonym of ''
Copulabyssia gradata''
(B. A. Marshall, 1986)
References
* Higo, S., Callomon, P. & Goto, Y. (2001) Catalogue and Bibliography of the Marine Shell-Bearing Mollusca of Japan. Gastropoda Bivalvia Polyplacophora Scaphopoda Type Figures. Elle Scientific Publications, Yao, Japan, 208 pp.
External links
Schepman M.M. (1908). The Prosobranchia of the Siboga Expedition. Part I. Rhipidoglossa and Docoglossa. Siboga Expeditie, 49a: 1-107, pl. 1-9. Leiden, E. J. Brill
{{Taxonbar, from=Q7254668
Pseudococculinidae