Perrona
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| Perrona | |
|---|---|
 | |
| A shell of Perrona spirata | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Superfamily: | Conoidea |
| Family: | Clavatulidae |
| Genus: | Perrona Schumacher, 1817 |
| Type species | |
| Perrona tritonum Schumacher, 1817 | |
| Synonyms[1] | |
| |
Perrona is a genus of sea snails, marine gastropod mollusks in the family Clavatulidae.[1][2]
In this genus the spire is carinated or smooth. The whorls are not tubercular or spinose. The anal sinus can be found more or less near the suture.[3]
The smooth shell is fusiform. The spire is short with few whorls. The aperture is narrow. The siphonal canal is long. The outer lip shows a wide shallow sinus near the middle. The inner lip has a thick callosity at the hind part near the suture.
The species of Perrona are smooth and solid shells with a notch in the middle of the outer lip. The hind part of the body whorl is gibbous, and the columella, as in that genus, is callous posteriorly.[4]
