''Mangelia myrmecodes'' is a species of

sea snail Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...

, a marine

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusk in the family Mangeliidae. Melvill, James Cosmo, and Robert Standen. "The Mollusca of the Persian Gulf, Gulf of Oman, and Arabian Sea, as evidenced mainly through the Collections of Mr. FW Townsend, 1893–1900; with Descriptions of new Species." Proceedings of the Zoological Society of London. Vol. 71. No. 2. Blackwell Publishing Ltd, 1901
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Description

The length of the shell attains 5 mm, its diameter 2.55 mm. (Original description) The solid shell is oblong and has a pale straw color. It contains six

whorl A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs). Whorls in nature File:Photograph and axial plane floral ...

s. The

protoconch A protoconch (meaning first or earliest or original shell) is an embryonic or larval shell which occurs in some classes of molluscs, e.g., the initial chamber of an ammonite or the larval shell of a gastropod. In older texts it is also called ...

is nipple-shaped and slightly translucent. The other whorls show pronounced noduled ribs (11 on the

body whorl The body whorl is part of the morphology of the shell in those gastropod mollusks that possess a coiled shell. The term is also sometimes used in a similar way to describe the shell of a cephalopod mollusk. In gastropods In gastropods, the b ...

). The many spiral lirae form nodules when crossing the ribs. The aperture is narrow. The sinus is wide. The outer lip is incrassate and crenulate. The columella stands upright. It is best distinguished by its noduled ribs, which are particularly well defined.

Distribution

This marine species occurs off Pakistan.

References

External links

Tucker, J.K. 2004 ''Catalog of recent and fossil turrids (Mollusca: Gastropoda)''. Zootaxa 682:1–1295
{{DEFAULTSORT:Mangelia Myrmecodes myrmecodes Gastropods described in 1901