''Micrelenchus huttonii'' 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
Marine is an adjective meaning of or pertaining to the sea or ocean.
Marine or marines may refer to:
Ocean
* Maritime (disambiguation)
* Marine art
* Marine biology
* Marine debris
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* ...
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 Trochidae, the top snails.
[MolluscaBase eds. (2020). MolluscaBase. Micrelenchus huttonii (E. A. Smith, 1876). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=724124 on 2020-07-26]
Description
The shell grows to a length of 14½ mm, its diameter 10½ mm. The covered perforate shell has a short-conical shape. It is bluish-black or purplishblack, the
apex worn white. The 5 to 6
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 are slightly convex. Their
sculpture contains 7 to 8 spiral striae and incremental lines. 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 ...
is obtusely angular at the periphery, rather convex beneath, slightly impressed in the region of the
umbilicus. The lightly grooved
aperture is subcircular-quadrate and iridescent within. The
lip is within a trifle thickened. It is whitish and narrowly edged with black. The thickened
columella is slightly arcuate and covers the perforation.
Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
(described as ''Cantharidus tenebrosus'' var. ''huttonii'')
Distribution
This marine species occurs off New Zealand.
References
* Smith, E.A. (1876) A list of marine shells, chiefly from the Solomon Islands, with descriptions of several new species. Journal of the Linnean Society of London, 12, 535–562, pl. 30
* Marshall B.A. 1998. The New Zealand Recent species of Cantharidus Montfort, 1810 and Micrelenchus Finlay, 1926 (Mollusca: Gastropoda: Trochidae). Molluscan Research 19(1): 107-156
* Spencer, H.G., Marshall, B.A. & Willan, R.C. (2009). Checklist of New Zealand living Mollusca. pp 196–219. in: Gordon, D.P. (ed.) New Zealand inventory of biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. Canterbury University Press, Christchurch
External links
To World Register of Marine Species
*
Hutton F.W. (1878). Révision des coquilles de la Nouvelle-Zélande et des Iles Chatham. Journal de Conchyliologie. 26: 5-57
{{Taxonbar, from=Q3709554
huttonii
Gastropods described in 1876