Mangelia subcircularis
Mangelia subcircularis | |
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Scientific classification ![]() | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
Clade: | Caenogastropoda |
Clade: | Hypsogastropoda |
Clade: | Neogastropoda |
Superfamily: | Conoidea |
Family: | Mangeliidae |
Genus: | Mangelia |
Species: | M. subcircularis |
Binomial name | |
Mangelia subcircularis W.H. Dall, 1927 | |
Synonyms | |
Mangilia subcircularis Dall, 1927 |
Mangelia subcircularis is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.[1]
Description
The length of the shell attains 8 mm, its diameter 2.7 mm.
(Original description) The small, slender, thin shell has a blunt apex. It is whitish and glistening. It shows a swollen protoconch of 1½ whorl and 4½ subsequent well rounded whorls. The suture is distinct, appressed, with a smooth, hardly constricted fasciole in front of it. The axial sculpture consists chiefly of rather strong flexuous incremental lines and a few gradually obsolescent riblets on the earlier whorls. The spiral sculpture consists of (on the body whorl 18-20) fine prominent threads rising above the incremental lines, with wider interspaces, covering the whole whorl in front of the fasciole;. The aperture is ovate, measuring about⅓ the whole length. The anal sulcus forms nearly a semicircle. The outer lip is thin and arcuate. The siphonal canal is wide. The columella is twisted, attenuated in front; axis impervious.[2]
Distribution
This marine species was found off Georgia, USA.
References
- ↑ Mangelia sagena (Dall, 1927). Retrieved through: World Register of Marine Species on 9 August 2011.
- ↑ Dall W. H. (1927). Small shells from dredgings off the southeast coast of the United States by the United States Fisheries Steamer "Albatross", in 1885 and 1886; Proceedings of the United States National Museum, 70(18): 1-134
This article incorporates text from this source, which is in the public domain.