Thyca

Last updated

Thyca
Thyca crystallina 002.jpg
Shell of Thyca crystallina
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked):clade Caenogastropoda
clade Hypsogastropoda
informal group Ptenoglossa
Superfamily: Eulimoidea
Family: Eulimidae
Genus:Thyca
H. Adams & A. Adams, 1854
Type species
Pileopsis astericola
A. Adams & Reeve, 1850
Synonyms [1]
  • BessomiaBerry, 1959
  • Capulus (Thyca)
  • GranulithycaHabe, 1976
  • KiramodulusKuroda, 1949
  • Thyca (Bessomia)Berry, 1959 · accepted, alternate representation
  • Thyca (Kiramodulus) Kuroda, 1949 · accepted, alternate representation
  • Thyca (Thyca)H. Adams & A. Adams, 1854 · accepted, alternate representation

Thyca is a genus of small sea snails, marine gastropod mollusks in the family Eulimidae. [1] These snails are ectoparasites of starfish; they are relatively unmodified, the underside having become a suction disc with a central mouth that draws nourishment from the host's tissues. [2]

A genus is a taxonomic rank used in the biological classification of living and fossil organisms, as well as viruses, in biology. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus.

Sea snail common name for snails that normally live in saltwater

Sea snail is a common name for snails that normally live in salt water, in other words marine gastropods. The taxonomic class Gastropoda also includes snails that live in other habitats, such as land snails and freshwater snails. Many species of sea snails are edible and exploited as food sources by humans.

Ocean A body of water that composes much of a planets hydrosphere

An ocean is a body of water that composes much of a planet's hydrosphere. On Earth, an ocean is one of the major conventional divisions of the World Ocean. These are, in descending order by area, the Pacific, Atlantic, Indian, Southern (Antarctic), and Arctic Oceans. The word "ocean" is often used interchangeably with "sea" in American English. Strictly speaking, a sea is a body of water partly or fully enclosed by land, though "the sea" refers also to the oceans.

Contents

Description

The conical shell is longitudinally grooved, transparent and slightly curved. [3]

Species

Species within the genus Thyca include: [1]

<i>Thyca astericola</i> species of mollusc

Thyca astericola is a species of sea snail, a marine gastropod mollusk in the family Eulimidae. The species is one of multiple known species to exist within the genus, Thyca.

Thyca callista is a species of sea snail, a marine gastropod mollusk in the family Eulimidae. The species is one of multiple known species to exist within the genus, Thyca.

<i>Thyca crystallina</i> species of mollusc

Thyca crystallina is a species of sea snail, a marine gastropod mollusc in the family Eulimidae. It is one of nine species within the genus Thyca, all of which are parasitic on starfish in the Indo-Pacific Ocean. This species was first described in 1846 by the American conchologist Augustus Addison Gould as Pileopsis crystallina but was later transferred to Thyca.

Species brought into synonymy

Related Research Articles

Eulimidae family of molluscs

Eulimidae is a family of very small parasitic sea snails, marine gastropod mollusks in the superfamily Vanikoroidea.

<i>Niso</i> genus of molluscs

Niso is a genus of very small parasitic sea snails, marine gastropod mollusks or micromollusks in the family Eulimidae.

Amamibalcis is a genus of ectoparasitic sea snails, marine gastropod mollusks in the family Eulimidae.

Annulobalcis is a genus of medium-sized sea snails, marine gastropod mollusks in the family Eulimidae.

Annulobalcis cicatricosa is a species of sea snail, a marine gastropod mollusk in the family Eulimidae.

Apicalia is a genus of medium-sized sea snails, marine gastropod mollusks in the family Eulimidae.

Apicalia palmipedis is a species of sea snail, a marine gastropod mollusk in the family Eulimidae.

Bacula is a genus of medium-sized sea snails, marine gastropod mollusks in the family Eulimidae.

Curveulima is a major genus of medium-sized sea snails, marine gastropod mollusks in the family Eulimidae.

Thyca sagamiensis is a species of sea snail, a marine gastropod mollusk in the family Eulimidae. The species is one of multiple known species to exist within the genus, Thyca.

Goodingia capillastericola is a species of sea snail, a marine gastropod mollusk in the family Eulimidae. This species, along with Goodingia varicosa belongs in the Goodingia genus of gastropods.

Hemiliostraca is a genus of sea snails, marine gastropod mollusks in the family Eulimidae.

<i>Hypermastus</i> genus of molluscs

Hypermastus is a genus of sea snails, marine gastropod mollusks in the family Eulimidae.

Hypermastus peronellicola is a species of sea snail, a marine gastropod mollusk in the family Eulimidae.

Melanella aethria is a species of sea snail, a marine gastropod mollusk in the family Eulimidae. The species is one of many species known to exist within the genus, Melanella.

<i>Stilapex</i> genus of molluscs

Stilapex is a genus of very small parasitic sea snails, marine gastropod mollusks or micromollusks in the family Eulimidae.

Robillardia is a genus of very small ectoparasitic sea snails, marine gastropod mollusks or micromollusks in the Eulimidae family. This genus was described by Edgar Albert Smith in 1889.

Parvioris is a genus of small ectoparasitic sea snails, marine gastropod mollusks in the family Eulimidae.

Peasistilifer is a genus of parasitic sea snails, marine gastropod mollusks in the family Eulimidae.

References

  1. 1 2 3 Bouchet, P. (2012). Thyca H. Adams & A. Adams, 1854. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=196298 on 2012-07-25
  2. Combes, Claude (2005). The Art of Being a Parasite. University of Chicago Press. p. 25. ISBN   978-0-226-11438-5.
  3. G.W. Tryon (1886) Manual of Conchology v; VIII