| Perrona | |
|---|---|
 | |
| A shell of Perrona spirata | |
Scientific classification  | |
| Domain: | Eukaryota |
| 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]
Species within the genus Perrona include:
Nassarius, common name nassa mud snails (USA) or dog whelks (UK), is a genus of minute to medium-sized sea snails, marine gastropod molluscs in the family Nassariidae. They are scavengers.
Vasum, common name the vase snails or vase shells, is a genus of mostly rather large predatory sea snails, marine gastropod mollusks in the subfamily Vasinae within the family Turbinellidae.
Clavatulidae is a taxonomic family of sea snails, marine gastropod mollusks in the superfamily Conoidea. The family is not well differentiated morphologically.
Mitrella is a genus of small sea snails, marine gastropod mollusks in the family Columbellidae, the dove shells or dove snails.
Semicassis is a genus of medium-sized predatory sea snails, marine gastropod molluscs in the subfamily Cassinae within the family Cassidae, the helmet snails and bonnet snails.
Pugilina is a genus of large sea snails, marine gastropod mollusks in the family Melongenidae, the crown conches and their allies.
Hemifusus is a genus of sea snails, marine gastropod molluscs in the family Melongenidae, the crown conches and their allies.
Scalptia is a genus of sea snails, marine gastropod mollusks in the family Cancellariidae, the nutmeg snails.
Turris is a genus of sea snails, marine gastropod mollusks in the family Turridae, the turrids.
Clinura is a genus of sea snails, marine gastropod mollusks in the family Raphitomidae.
Clavatula is a genus of sea snails, marine gastropod mollusks in the family Clavatulidae.
Pusionella is a genus of sea snails, marine gastropod mollusks in the family Clavatulidae.
Pisania is a genus of marine whelk in the family Pisaniidae. Some species prey on barnacles.
Ocinebrina is a genus of sea snails, marine gastropod mollusks in the subfamily Ocenebrinae of the family Muricidae, the murex snails or rock snails.
Trigonostoma is a genus of sea snails, marine gastropod mollusks in the family Cancellariidae, the nutmeg snails.
Tomellana is a genus of sea snail marine gastropod mollusks in the family Clavatulidae.
Pseudotoma is an extinct genus of predatory sea snails, marine gastropod mollusks belonging to the family Turridae.
Genota is a genus of sea snails, marine gastropod mollusks in the family Borsoniidae.
Perrona descendens is an extinct species of sea snails, a marine gastropod mollusc in the family Clavatulidae.
Tomellana semimarginata is an extinct species of sea snails, a marine gastropod mollusc in the family Clavatulidae.
