''Daphnella sabrina'' 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 Raphitomidae
Raphitomidae is a family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.Bouchet P. & Rocroi J.-P. (Ed.) (2005). "Classification and nomenclator of gastropod families". '' Malacologia'' 47(1-2). . 3 ...
.
[{MolluscaBase (2019). MolluscaBase. Daphnella sabrina Melvill, 1906. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=764251 on 2019-03-30]
Description
The length of the shell attains 5 mm, its diameter 3 mm.
The delicate, white, ovate-fusiform shell is extremely highly sculptured, with many oblique, spiral carinae (two at the antepenultimate
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 ...
, three at the penultimate and five at 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 ...
), one being especially conspicuous at the periphery. The cross cancellations are pronounced and fine. The shell contains eight whorls. The 3-4 apical whorls are ochreous and minutely decussate, the subsequent whorls are impressed at the suture. The wide
aperture is ovate. 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 short. The outer
lip is thin. The
columella stands almost upright. The sinus is wide and not deep.
J.C. Melvill (1917), A revision of the Turridae (Pleurotomidae) occurring in the Persian Gulf, Gulf of Oman and North Arabian Sea, as evidenced mostly through the results of dredgings carried out by Mr. F. W. Townsend, 1893-1914; Proceedings of the Malacological Society of London vol. 12, 1917
Distribution
This species occurs in 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 ...
.
References
* Bonfitto, A., Sabelli, B. & Morassi, M. (2001) Austrodaphnella yemenensis new species (Gastropoda: Turridae) from Yemen, Red Sea, with notes on A. alcestis (Melvill, 1906). The Nautilus, 115, 84–89
External links
*
{{DEFAULTSORT:Daphnella Sabrina
sabrina
Gastropods described in 1906