''Obesotoma cymata'' is a species of
sea snail, a marine
gastropod mollusk
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...
in the
family
Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...
Mangeliidae
Mangeliidae is a monophyletic family of small to medium-sized, predatory sea snails, marine gastropod mollusks in the superfamily Conoidea.
Bouchet, P. (2011). Mangeliidae P. Fischer, 1883. In: MolluscaBase (2016). Accessed through: World Re ...
.
[Bouchet, P. (2017). Obesotoma cymata (Dall, 1919). In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=954961 on 2017-10-25]
Description
The length of the shell attains 23 mm, its diameter 10.5 mm.
(Original description) The shell resembles typical ''
Obesotoma tenuilirata
''Obesotoma tenuilirata'' is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.
Description
The length of the shell varies between 8 mm and 24 mm.
W.H. Dall considered this originally as perhaps a variet ...
''
(Dall, 1871, but with a higher and more acute
spire
A spire is a tall, slender, pointed structure on top of a roof of a building or tower, especially at the summit of church steeples. A spire may have a square, circular, or polygonal plan, with a roughly conical or pyramidal shape. Spires a ...
, and with 20 or more narrow axial riblets on the
body whorl, obsolete on the base, and a single spiral thread at the shoulder.
Dall (1919) Descriptions of new species of Mollusca from the North Pacific Ocean; Proceedings of the U.S. National Museum, vol. 56 (1920)
Distribution
This marine species occurs from Nunivak Island
Nunivak Island ( Central Alaskan Yup'ik: ; Nunivak Cup'ig: ''Nuniwar''; russian: Нунивак, Nunivak) is a permafrost-covered volcanic island lying about offshore from the delta of the Yukon and Kuskokwim rivers in the US state of Alaska, at ...
, Bering Sea, to the Shumagin Islands
The Shumagin Islands (Unangan: ''Qagiiĝun''; russian: Острова Шумагина) are a group of 20 islands in the Aleutians East Borough south of the mainland of Alaska, United States, at
54°54'–55°20' North 159°15'–160°45' West. ...
, Alaska.
References
External links
Merkuljev A.V. (2017). Taxonomic puzzle of Propebela arctica (A. Adams, 1855) (Gastropoda, Mangeliidae) - six different species under single name. Ruthenica. 27(1): 15–30
Tucker, J.K. 2004 ''Catalog of recent and fossil turrids (Mollusca: Gastropoda)''. Zootaxa 682:1–1295.
*
cymata
Gastropods described in 1919
{{Mangeliidae-stub