Calliostoma fragum
{{Short description|Species of gastropod}}
{{Use dmy dates|date=August 2020}}
{{Speciesbox
| image = Calliostoma fragum 001.jpg
| image_caption = Drawing with two views of a shell of Calliostoma fragum
| taxon = Calliostoma fragum
| authority = (Philippi, 1848) Phiippi., Zeitschr. f Mal. 1848, p. 106
| synonyms =
- Trochus fragum Philippi, 1848
- Zizyphinus fragum Philippi in Reeve
}}
Calliostoma fragum is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.{{WRMS species|216291|Calliostoma fragum (Philippi, 1848)}}
Description
The height of the shell attains 8 mm.
The subperforate shell has a conical shape. It is pale purplish-brown, painted with whitish stripes, with 4 distant series of granules. The eight granulate whorls have their basal margins prominent. The interstices are very delicately obliquely striate. The base is a little convex, sculptured with 8 flat subgranose concentric lirae, each one divided by a furrow into two parts, alternating with narrow elevated lines. The smooth aperture is rhomboidal. The columella is a little oblique, and subtruncate at its base.[https://archive.org/details/manualofconcholo111tryo Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia]
Distribution
This marine species occurs off the Philippines.
References
{{Reflist}}
External links
- {{Gastropods.com|key=9|id=68399|title=Calliostoma fragum|access-date=15 January 2019}}
{{Taxonbar|from=Q5022328}}
{{DEFAULTSORT:Calliostoma Fragum}}