''Monilea pantanellii'' 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 Trochidae, the top snails.
Description
The height of the shell attains 3 mm, its diameter 2½ mm. The turbinate, rather solid, red shell is umbilicate. 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 sloping and angular. The first two whorls are smooth and scarcely visible, the rest ornamented with oblique lamellar minute striae and tuberculate cinguli. Beneath they are ornamented with three granulose whitish concentric cinguli, the upper two near each other, the third more distant, surrounding the
umbilicus. The
suture is nearly covered. The umbilicus is profound, funnel-shaped, and crenate. The simple
peristome is continuous. The whitish
aperture is subrotund.
H. Pilsbry (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
/ref>
Distribution
This species occurs in the Red Sea off Assab
Assab or Aseb (, ) is a port city in the Southern Red Sea Region of Eritrea. It is situated on the west coast of the Red Sea.
Languages spoken in Assab are predominantly Afar, Tigrinya, and Arabic. Assab is known for its large market, beaches an ...
, Erithrea.
References
External links
*
{{DEFAULTSORT:Monilea Pantanellii
pantanellii
Gastropods described in 1888