''Mangelia semiassa'' 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.
[Gould, A. A. Descriptions of shells collected in the North Pacific Exploring Expedition1860. under Captains Ringgold and Rodgers. Proc. Boston Soc. Nat. Hist. 1859–1860 vol.7 p. 383]
Description
The length of the shell attains 8mm, its diameter 3 mm.
Distribution
References
External links
G.W. Tryon (1884) Manual of Conchology, structural and systematic, with illustrations of the species, vol. VI; Philadelphia, Academy of Natural Sciences
R.I. Johnson, The Recent Mollusca of Augustus Addison Gould; United States National Museum, bulletin 239, Washington D.C. 1964
semiassa
Gastropods described in 1860
{{Mangelia-stub