Isodaphne perfragilis
{{Short description|Species of gastropod}}
{{Use dmy dates|date=July 2019}}
{{Speciesbox
|taxon =Isodaphne perfragilis
|image = Isodaphne perfragilis 001.jpg
|image_caption = Original image of a shell of Isodaphne perfragilis
|authority = (Schepman, 1913)
|synonyms = Daphnella perfragilis Schepman, 1913
|display_parents = 3
}}
Isodaphne perfragilis is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.{{WRMS species|434103|Isodaphne perfragilis (Schepman, 1913)||5 April 2010}}
Description
The length of the shell attains 18.5 mm, its diameter 7.5 mm.
(Original description) The white, fusiform shell has a moderately long siphonal canal. It is very thin, fragile and hyaline. It contains eight whorls, of which about 2½ form the protoconch, with convex whorls and criss-cross sculpture. The subsequent whorls are convex, separated by a deep, linear suture, the upper ones are strongly angular at the shoulder, the angle however is fainter on lower whorls and nearly disappears on the body whorl. A second prominent liration is visible on upper whorls, but becomes likewise fainter. Moreover, the shell is crossed by numerous, fine, raised, spiral striae and finer axial ones, producing a fine cancellation. On the siphonal canal the spirals are stronger. The aperture is oval, angular above, with a rather short, moderately wide siphonal canal below. The peristome is broken, according to growth lines with a shallow sinus above, roundedly angular at the entrance of the siphonal canal. The columellar margin is convex at the body whorl, then nearly straight, slightly curved to the left, with a thin layer of enamel. [https://archive.org/details/prosobranchiaofs46sche Schepman, 1913. The prosobranchia of the Siboga expedition. Part IV -V - VI: Toxoglossa] {{PD-notice}}
Distribution
This marine species occurs in the Makassar Strait and in the Ceram Sea, Indonesia at depths between 835 m - 2029 m
References
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External links
- {{cite journal |last=Sysoev |first=Alexander |editor1-last=Crosnier |editor1-first=A. |editor2-last=Bouchet |editor2-first=P. |date=1997 |title=Mollusca Gastropoda: New deep-water turrid gastropods (Conoidea) from eastern Indonesia |url=http://bionames.org/bionames-archive/issn/1243-4442/172/325.pdf |journal=Résultats des Campagnes MUSORSTOM |publisher=Mém. Mus. natn. Hist. nat |volume=16 |issue=172 |pages=325–355 |isbn=2-85653-506-2 |access-date=11 October 2014}}
- {{cite journal | last1 = Tucker | first1 = J.K. | year = 2004 | title = Catalog of recent and fossil turrids (Mollusca: Gastropoda) | url = http://www.mapress.com/zootaxa/2004f/z00682f.pdf | format = PDF | journal = Zootaxa | volume = 682 | pages = 1–1295 }}
{{Taxonbar|from=Q3723509}}
{{DEFAULTSORT:Isodaphne Perfragilis}}