Hyala

Hyala
	Shells of Hyala vitrea (Montagu, 1803)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Family:	Iravadiidae
Genus:	Hyala; H. Adams & A. Adams, 1852
Type species
	Turbo vitreus Montagu, 1803;

Hyala is a genus of very small, somewhat amphibious land snails that have a gill and an operculum, semi-terrestrial gastropod mollusks or micromollusks belonging to the family Iravadiidae.^[1]

Description

(Original description) The head of the animal is elongated and emarginate at the tip, forming two distinct lobes. The tentacles are flattened, lacking a club-shaped tip, and possess fine setae at their extremities. The eyes are sessile and located centrally on the base of each tentacle. The foot is simple posteriorly. The opercular lobe lacks a caudal cirrus. The shell is hyaline (transparent). ^[2]

They are subsurface deposit feeders.

Species

Species within the genus Hyala include:

Hyala adamsi Golikov & Kussakin in Golikov & Scarlato, 1971
Hyala bella (A. Adams, 1853)
† Hyala fragila Dockery, 1993
Hyala vitrea (Montagu, 1803)

Species brought into synonymy

† Hyala laevigatoidea Gründel, 1993: synonym ofs † Usedomella laevigatoidea (Gründel, 1993 (superseded combination)
Hyala mediterranea F. Nordsieck, 1972: synonym of Hyala vitrea (Montagu, 1803)
Hyala pumila A. Adams, 1870: synonym of Microdryas pumila (A. Adams, 1870) (superseded combination)

References

^ Bouchet, P.; Gofas, S. (2012). Hyala H. Adams & A. Adams, 1852. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138083 on 2012-08-14
^ Adams H. & Adams A. (1852). "On a new Arrangement of British Risooæ". Annals and Magazine of Natural History (2)10: 358-359. This article incorporates text from this source, which is in the public domain.

Ponder W. F. (1984) A review of the genera of the Iravadiidae (Gastropoda: Rissoacea) with an assessment of the relationships of the family. Malacologia 25(1): 21-71. page(s): 51-52
Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). ISBN 0-915826-22-4. XII, 195 pp.
Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180–213

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[WoRMS-1] Bouchet, P.; Gofas, S. (2012). Hyala H. Adams & A. Adams, 1852. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138083 on 2012-08-14

[2] Adams H. & Adams A. (1852). "On a new Arrangement of British Risooæ". Annals and Magazine of Natural History (2)10: 358-359. This article incorporates text from this source, which is in the public domain.

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