| Turbonilla compsa | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Heterobranchia |
| Family: | Pyramidellidae |
| Genus: | Turbonilla |
| Species: | T. compsa |
| Binomial name | |
| Turbonilla compsa | |
| Synonyms | |
Chemnitzia compsa (Bush, 1899) | |
Turbonilla compsa is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies. [2]
The shell grows to a length of 3.4 mm. It is small, opaque white, with considerable lustre. Its upper portion is much more abruptly tapered than the lower. The eight whorls of the teleoconch are flattened. The only curvature is just above the suture which is so deep and straight that each whorl extends out abruptly beyond the preceding one. The transverse ribs are irregularly developed due to an injury. There are about 30 narrow and, perpendicular ribs. They are straight on the upper whorls, becoming slightly curved above. On the lower whorls they are separated by wider, moderately deep spaces, which end at the periphery of the well-rounded body whorl in clean-cut, rounded ends. The base of the shell is elongate, and well-rounded. The inner lip is straight and thickened. [3]
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