Stomatia phymotis explained

Stomatia phymotis, common name the swollen stomatella, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

Description

The size of the shell varies between 7 mm and 35 mm. The lengthened, solid shell is ear-shaped. It has a scalar spire. The body whorl descends very deeply. The shell is lusterless, red, marked at the suture, keel and base with olive or brown articulated with white. The surface is very rough, with a strong double nodulous keel at the middle of the whorl, several nodose spiral riblets and threads below it, strongly. The shell is plicate or puckered below the sutures. The aperture is irregular-oval and nacreous inside.

There is considerable variation in both form and color.^[1]

Distribution

This marine species occurs in the Red Sea, Central and East Indian Ocean, East India, Indo-Malaysia, Oceania, the Philippines, Japan, Australia (Northern Territory, Queensland, Western Australia) and Indonesia.^[2]

References

• Gmelin, J.F. & Linnaeus, C. 1791. Caroli a Linné Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentis, synonymis, locis. Editio decima tertia aucta, reformata. Lipsiae : G.E. Beer.
• Adams, A. 1850. An arrangement of Stomatellidae, including the characters of a new genus Cumingia, with some additional generic characters. Proceedings of the Zoological Society of London 1850(18): 29–40, pl. 8
• Melvill, J.C. & Standen, R. 1901. The Mollusca of the Persian Gulf, Gulf of Oman, and the Arabian Sea, as evidenced mainly through the collections of Mr. F.W. Townsend, 1893–1900; with descriptions of new species. Proceedings of the Zoological Society of London 1901(ii): 327–460 pls xxi–xxiv
• Allan, J. 1935. Australian shells: ear shells and wide-mouthed shells. Australian Museum Magazine 5(9): 320–324, 5 figs
• Cotton, B.C. 1945. Southern Australian Gastropoda. Part 1. Streptoneura. Transactions of the Royal Society of South Australia 69(1): 150–171
• Cotton, B.C. 1959. South Australian Mollusca. Archaeogastropoda. Handbook of the Flora and Fauna of South Australia. Adelaide : South Australian Government Printer 449 pp
• Maes, V.O. 1967. The littoral marine mollusks of Cocos-Keeling Islands (Indian Ocean). Proceedings of the Academy of Natural Sciences, Philadelphia 119: 93–217
  • Sharabati, D. 1984. Red Sea Shells. London : KPI Limited 128 pp.
• Wells, F.E. & Bryce, C.W. 1988. Seashells of Western Australia. Perth : Western Australian Museum 207 pp.
• Wilson, B. 1993. Australian Marine Shells. Prosobranch Gastropods. Kallaroo, Western Australia : Odyssey Publishing Vol. 1 408 pp.
• Moolenbeek, R.G. 1995. Gastropods (Gastropoda). pp. 24–186 in Dance, S.P. (ed). Seashells of Eastern Arabia. Dubai : Motivate Publishing.
• Higo, S., Callomon, P. & Goto, Y. 1999. Catalogue and Bibliography of the Marine Shell-bearing Mollusca of Japan. Japan : Elle Scientific Publications 749 pp
• Wilson, B. 2002. A Handbook to Australian Seashells on Seashores East to West and North to South. Sydney : Reed New Holland 185 pp
• Poppe G.T., Tagaro S.P. & Dekker H. (2006) The Seguenziidae, Chilodontidae, Trochidae, Calliostomatidae and Solariellidae of the Philippine Islands. Visaya Supplement 2: 1–228. page(s): 102

Notes and References

1. https://archive.org/details/manualconch12tryorich H.A. Pilsbry (1890) Manual of Conchology XII; Academy of Natural Sciences, Philadelphia, 1890
2. Book: Siput dan kerang Indonesia (Indonesian Shells) . Bunjamin . Dharma . 1988 . I. [A up to Olividae] . 111 pp . PT. Sarana Graha . . 2017-03-14 . id,en .