Stomatia

Stomatia, common name the keeled wide mouths, is a genus of sea snails, marine gastropod mollusks in the family Trochidae, the top snails.[2]

Stomatia
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Trochidae
Genus: Stomatia
Helbling, 1779[1]
Type species
Stomatia phymotis Helbling, G.S., 1779
Synonyms
  • Stomatia (Stomatia) Helbling, 1779
  • Stomax Montfort, 1810

Description

The spiral shell is oblong or depressed orbicular. The spire is prominent but short. The surface is tubercled or keeled. The whorls show a series of short folds below the suture. The aperture is either oblong or transversely oval, and longer than wide or the reverse. The interior of the shell is nacreous. There is no operculum.

Stomatia is closely allied to Stomatella, differing in the generally more elongated shell with a series of short folds or puckers below the sutures. Usually the body whorl has a tuberculous carina.

The animal is too large to entirely enter the shell. The foot is large, fleshy, tubercular, greatly produced posteriorly. The epipodium is fringed, with a more prominent fimbriated lobe behind the left tentacle, and on the right there is a slightly projecting fold or gutter leading to the respiratory cavity. There are digitated intertentacular lobes.[3]

Distribution

This marine genus occurs in tropical Indo-West Pacific, Oceania, Korea and Australia.

Species

Species within the genus Stomatia include:

The Indo-Pacific Molluscan Database also mentions the following species [6]

  • Stomatia acuminata A. Adams, 1850
  • Stomatia sulcata (Lamarck, 1816) (synonyms: Stomatolina rubra (Lamarck, 1822), Stomatella sulcata Lamarck, 1816 and Stomatia sculpturata Preston, 1914)
Species brought into synonymy
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References
  1. Stomatia Helbling, 1779. Retrieved through: World Register of Marine Species on 24 September 2012.
  2. Stomatia . Retrieved through: World Register of Marine Species on 12 June 2012.
  3. G.W. Tryon (continued by Pilsbry) (1890) Manual of Conchology XII Stomatellidae, Scissurellidae, Pleurotomariidae, Haliotidae, Scutellinidae, Addisoniidae, Cocculinidae, Fissurellidae
  4. Stomatia phymotis (Hebling, 1779). Retrieved through: World Register of Marine Species on 1 May 2010.
  5. Stomatia splendidula A. Adams, 1855. Retrieved through: World Register of Marine Species on 1 May 2010.
  6. OBIS: Stomatia
  7. Stomatia duplicata G.B. Sowerby I, 1823. Retrieved through: World Register of Marine Species on 1 May 2010.
  • Helbling, 1779: Abhandlungen einer Privatgesellschaft in Böhmen zur Aufnahme der Mathematik, der vaterländischen Geschichte und der Naturgeschichte, 4: 124
  • 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.
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