| 词条 | Malea pomum |
| 释义 |
| name = Pacific grinning tun | image = Malea pomum (Linné, 1758) (4574793541).jpg | image_caption = Malea pomum shell | regnum = Animalia | phylum = Mollusca | classis = Gastropoda | unranked_superfamilia = clade Caenogastropoda clade Hypsogastropoda clade Littorinimorpha | superfamilia = Tonnoidea | familia = Tonnidae | subfamilia = | genus = Malea | subgenus = | species = M. pomum | binomial = Malea pomum | binomial_authority = (Linnaeus, 1758)[1] | synonyms_ref = [2] | synonyms =
}}Malea pomum, common name the Pacific grinning tun, is a species of large sea snail, a marine gastropod mollusk in the family Tonnidae, the tun shells.[2] DescriptionThe size of the shell varies between 40 mm and 90 mm. The somewhat thick shell is ovate and inflated. It has a whitish ground color, varied and spotted with square spots, of a yellow more or less reddish, alternating upon the transverse ribs, with other spots of a dull white. The short spire is composed of six convex whorls, slightly flattened above, banded with ribs equally convex, wide, not distant, and divided by narrow, shallow furrows. The aperture is somewhat narrow, toothed upon both edges, colored yellow within. The outer lip is dilated, particularly towards the base, and forms externally a very thick convex margin, the external part of which is sharp, undulated, and its internal surface furnished with ten or twelve transverse, distant teeth, resembling folds. The inner lip consists of a smooth plate, convex and white, which partially covers the body of the shell. The columella presents a pretty deep emargination, above which are observed several transverse thick folds, and some others, less numerous, more oblique, and less distinctly marked. The color of the animal is of a beautiful white, marked upon its circumference with triangular flames of a violet brown. The tentacles are long, slender and pointed, spotted with brown, in the form of triple rings. The trunk is white, the tube very long, pointed with brown and violet at its extremity.[3] DistributionThis marine species occurs in the Red Sea, the tropical Indo-West Pacific, the Philippines; off Tanzania, Madagascar, Mauritius, Mascarenes, Houtman Abrolhos, China; off Australia (the Northern Territory, Queensland and Western Australia). References1. ^{{WRMS source|22031|Linnaeus C. (1758). Systema Naturae. Editio Decima, Tomus I. Holmiae [Stockholm]: Laurentii Salvii.|9 July 2010}} 2. ^1 {{WRMS species|217025|Malea pomum (Linnaeus, 1758)|||WoRMS (2009). Malea pomum (Linnaeus, 1758). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=217025 on 9 July 2010}} 3. ^[https://archive.org/details/generalspeciesic00kien Kiener (1840). General species and iconography of recent shells : comprising the Massena Museum, the collection of Lamarck, the collection of the Museum of Natural History, and the recent discoveries of travellers; Boston :W.D. Ticknor,1837] (described as 'Dolium pomum)
2 : Tonnidae|Gastropods described in 1758 |
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