''Cymatosyrinx parciplicata'' 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 Drilliidae
The Drilliidae are a Taxonomy (biology), taxonomic family (biology), family of small predatory sea snails with high-spired shells. They are classified as marine (ocean), marine gastropod mollusks in the superfamily Conoidea.
This family has no s ...
.
Description
The shell grows to a length of 23 mm.
The shell is elongate-acuminate. Its color is dark white. The
spire is elongate and contains 7
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 first one is rounded, the second whorl is slightly convex, the others are convex and obtusely angulated. They show a few smooth oblique plicae. The interstices between the ribs are rather smooth. 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 oblong and slightly convex on top and with a short, but conspicuous, fold below the suture. There is no dorsal
varix
A varix (pl. varices) is an abnormally dilated vessel with a tortuous course. Varices usually occur in the venous system, but may also occur in arterial or lymphatic vessels.
Examples of varices include:
* Varicose veins, large tortuous veins usua ...
. The
siphonal canal
The siphonal canal is an anatomical feature of the shells of certain groups of sea snails within the clade Neogastropoda. Some sea marine gastropods have a soft tubular anterior extension of the mantle called a siphon through which water is ...
is truncated. The
columella is nearly straight and very thin plated.
[Sowerby, G.B. III (1915)]
"Descriptions of new species of mollusca from various localities"
''The Annals and Magazine of Natural History: Including Zoology, Botany, and Geology''. 8th ser. v. 16.
Distribution
This species occurs in the
demersal zone of the subtropical Northwest Pacific Ocean off
Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
and the
Philippines.
References
* Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)". ''Zootaxa''. 682: 1–1295.
External links
* Petit, R. E. (2009)
"George Brettingham Sowerby, I, II & III: their conchological publications and molluscan taxa" ''Zootaxa''. 2189: 1–218.
File:Cymatosyrinx parciplicata 001.jpg
File:Cymatosyrinx parciplicata 002.jpg
{{DEFAULTSORT:Cymatosyrinx Parciplicata
parciplicata
Gastropods described in 1915