''Ethminolia degregorii'' 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
* Marine habitats
* Marine life
* Marine pollution
Military
* ...
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.
[Bouchet, P. (2012). ''Ethminolia degregorii'' (Caramagna, 1888). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=701813 on 2012-11-23]
Description
The height of the shell attains 2 mm, its diameter 3 mm. The very fragile, umbilicate shell has a subdiscoidal shape and is delphinuliform. The depressed
spire is conoidal and obtuse. The five
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 spirally finely striate, in the middle slightly angled or subcarinate, and flattened between the carina and the
suture. The carina is slightly crenulated on 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 ...
posteriorly. The body whorl is rounded at the periphery. The convex base is deeply and broadly umbilicated and very finely corrugated. The simple
aperture is elliptical and heliciform. The surface of the spire is ornamented with five reddish zones alternating with white punctate with rosy. The surface of the base of the body whorl is ornamented with regularly radiating costiform white maculations.
H. Pilsbry, Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
/ref>
Distribution
This species occurs in the Red Sea, the Gulf of Oman
The Gulf of Oman or Sea of Oman ( ar, خليج عمان ''khalīj ʿumān''; fa, دریای عمان ''daryâ-ye omân''), also known as Gulf of Makran or Sea of Makran ( ar, خلیج مکران ''khalīj makrān''; fa, دریای مکرا ...
, the Arabian Sea and off Kuwait.
References
External links
To World Register of Marine Species
''Illustrated Atlas of the Zoobenthos of Kuwait''
Zuschin, Janssen, Baal - Gastropods and their habitats from the northern Red Sea, Part I Patellogastropoda, Vetigastropoda, Cycloneritimorpha.pdf Ann. Naturhist. Mus. Wien 111 A 73-158, Wien April 2009
{{Taxonbar, from=Q5404100
degregorii
Gastropods described in 1888