Gibbula fucata
| Gibbula fucata | |
|---|---|
 | |
| Apertural view of a shell of Gibbula fucata | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Clade: | Vetigastropoda |
| Superfamily: | Trochoidea (superfamily) |
| Family: | Trochidae |
| Genus: | Gibbula |
| Species: | G. fucata |
| Binomial name | |
| Gibbula fucata Gould, 1861 [1] | |
Gibbula fucata is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.[2]
Description
The height of the shell attains 5.6 mm, its diameter 7.3 mm. The elevated shell has a helicoid shape. Its apex is red, the rest variously spotted, streaked and blotched with Indian red, pale yellow, light green and brown. The 2½ nuclear whorls are well rounded and smooth. The postnuclear whorls are marked by four, very strong, rounded, equal, and equally spaced, spiral cords, of which the first is at the summit and the fourth at the periphery. On the last turn the cord at the summit becomes obsolete. In addition to the spiral sculpture the whorls are marked by very retractively slanting, closely spaced lines of growth. The periphery of the body whorl is rendered decidedly angulated by the spiral cord. The base of the shell is short, well rounded, marked on the posterior fourth by six, narrow, flattened, spiral bands and between these and the umbilical chink by seven additional bands of about double the width of the former. The umbilicus is covered with a white callus. The aperture is subcircular and very oblique. The outer lip is thin at the edge and thick within. The columella is strong and decidedly curved. The parietal wall is covered by a moderately thick callus.[3]
Distribution
This marine species occurs off Cape of Good Hope, South Africa
References
- ↑ Gould, Proc. Bost. Soc. Nat. Hist., vol. 8, p. 21, 1861
- ↑ Smithsonian Institution: Gibbula fucata
- ↑ P. Bartsch (1915), Report on the Turton collection of South African marine mollusks, with additional notes on other South African shells contained in the United States National Museum; Bulletin of the United States National Museum v. 91 (1915)
External links
 |
Wikimedia Commons has media related to Gibbula fucata. |