''Funa jeffreysii'', common name Jeffrey's turrid, 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 Pseudomelatomidae
Pseudomelatomidae is a family of predatory sea snails, marine gastropods included in the superfamily Conoidea (previously Conacea) and part of the Neogastropoda ( Bouchet & Rocroi, 2005).
In 1995 Kantor elevated the subfamily Pseudomelatomina ...
, the turrids and allies
[MolluscaBase (2018). Funa jeffreysii (E. A. Smith, 1875). Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=820513 on 2018-07-25]
Description
The length of the shell varies between 30 mm and 55 mm.
The shell contains about 13
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. These are angular convex and concave above. Its color is buff, finely mottled all over with reddish-brown, purplish on the spire, especially between the folds. It is sculptured with oblique longitudinal folds (11 on the penultimate whorl) which stop abruptly at the shoulder and gradually decrease below. The spirals are rather spaced, coarse and unequal, alternating in size, absent on the concave upper surface of the whorls. The surface between lirae and over the concave anal fasciole is finely spirally striate. The
aperture is subrhombic, narrowed below, slightly over one-third the shell's length. 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 a little recurved. The anal sinus is very deep and straight. The outer
lip is arched forward, with a distinct subbasal sinus. The
columella is moderately calloused and nearly straight below, bearing a callous tubercle above.
Pilsbry, H.A. (1895) ''Catalogue of the Marine Shells of Japan with Descriptions of New Species and Notes on Others Collected by Frederick Stearns. F. Stearns'', Detroit, viii + 196 pp., 11 pls
(described as ''Drillia principalis'')
Distribution
This marine species occurs 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 ...
, Korea China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
and the Philippines.
References
* Nomura, S. & Hatai, K.M. (1940) ''The marine fauna of Kyûroku-shima and its vicinity, northeast Honsyû, Japan''. Saito Ho-on Kai Museum of Natural History Research Bulletin, 19, 57–115, pls. 3–4.
* Liu J.Y. uiyu(ed.). (2008). ''Checklist of marine biota of China seas.'' China Science Press. 1267 pp
* Li B.Q., Kilburn R.N., & Li X.Z. (2010). ''Report on Crassispirinae Morrison, (Mollusca: Neogastropoda: Turridae) from the China Seas''. Journal of Natural History. 44, 699-740
External links
Smith E.A. (1875). A list of the Gasteropoda collected in Japanese seas by Commander H. C. St. John, R. N. Annals and Magazine of Natural History. ser. 4, 15: 414-427
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{{DEFAULTSORT:Funa Jeffreysii
jeffreysii
Gastropods described in 1875