| 词条 | Crassiclava layardi |
| 释义 |
| taxon =Crassiclava layardi | image =Crassiclava layardi 002.jpg | image_caption = Apertural view of a shell of Crassiclava layardi | authority = (Sowerby III, 1897) | synonyms_ref = [1] | synonyms =
| display_parents = 3 }}Crassiclava layardi is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.[1] DescriptionThe length of the shell attains 12 mm, its diameter 4 mm. The smooth, turreted, narrowly claviform shell is reddish brown to uniform dark brown. It shows 7 moderately strong longitudinal ribs. It contains 7 obtusely angulated whorls, above the shoulder slightly concave, below almost convex. The spiral lirae are feeble. The aperture is oblong-ovate. The columella is upright and shows a slight callus on top. The outer lip is arcuate with a wide sinus and not deeply emarginate. [2] DistributionThis marine species occurs from Table Bay to East London, Republic South Africa References1. ^1 {{WRMS species|433401|Crassiclava layardi (Sowerby III, 1897)||7 July 2012}} 2. ^ [https://doi.org/10.5962/bhl.title.13312 Sowerby III, G. B. (1897). Appendix to marine shells of South Africa : a catalogue of all the known species with references to figures in various works, descriptions of new species, and figures of such as are new, little known, or hitherto unfigured. London: G.B. Sowerby, 42 pp., 8 pls.]
page(s): 152 External links
2 : Crassiclava|Gastropods described in 1897 |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。