| 词条 | Clavus quadratus |
| 释义 |
| taxon =Clavus quadratus | image = | image_caption = | authority = Kilburn, 1988 | synonyms_ref = [1] | synonyms = Tylotiella quadrata Kilburn, 1988 (original combination) | display_parents = 3 }}Clavus quadratus is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.[1] DescriptionThe spire of the claviform, light brown shell is rather low, its protoconch large and rather blunt. The whorls are rather convex, lacking an angle or shoulder. The shell is sculptured overall by raised spiral threads. The body whorl is rather quadrate. The aperture is oblong. The wide siphonal canal is rather short. The columella is straight. The anal sinus is deep and wide.[2] DistributionThis marine species occurs off East Transkei, South Africa References1. ^1 Bouchet, P. (2015). Clavus quadratus (Kilburn, 1988). In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=833662 on 2016-08-17 2. ^Kilburn R.N. (1988). Turridae (Mollusca: Gastropoda) of southern Africa and Mozambique. Part 4. Subfamilies Drillinae, Crassispirinae and Strictispirinae. Annals of the Natal Museum. 29(1): 167-320. page(s): 190, figs 7, 97-100 External links{{Taxonbar|from=Q7860333}}{{Use dmy dates|date=January 2011}}{{DEFAULTSORT:Clavus Quadratus}} 2 : Clavus (gastropod)|Gastropods described in 1988 |
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