Antillorbis
| Antillorbis | |
|---|---|
| File:Antillorbis aeruginosis right side.png | |
| Antillorbis aeruginosus | |
Scientific classification 
| |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Superorder: | Hygrophila |
| Family: | Planorbidae |
| Subfamily: | Planorbinae |
| Tribe: | Drepanotrematini |
| Genus: | Antillorbis Harry & Hubendick, 1964[1] |
Antillorbis is a genus of freshwater gastropods belonging to the family Planorbidae.[2] This genus is distributed throughout the tropics and subtropics of the Americas.[2]
Description
[edit | edit source]Antillorbis species are small, between 2.5–5 mm (0.098–0.197 in) in shell width. Both species have a slight sculpture consisting of fine, spiraling lines, though this is much more common in A. aeruginosus.[3] The umbilicus is sunken, giving a concave appearance to the left and right side of the shell. The right side is less concave.[4][5] Like the genus Drepanotrema, Antillorbis species have two flagella that attach to the base of the penis sheath.[3]
| A. aeruginosus | A. nordestense | |
|---|---|---|
| Sculpture | More prominent | Less prominent |
| Aperture | Rounder | Oval-shaped |
| Reproductive Tract | Longer | Shorter |
| Prostate Diverticules | More | Fewer |
Distribution
[edit | edit source]Antillorbis species are native to the Americas. A. aeruginosus can be found in North and Central America, while A. nordestensis may be found in South America.[2]
Species
[edit | edit source]The species in this genus are as follows:[1][2]
- Antillorbis aeruginosus (Morelet, 1851)
- Antillorbis nordestensis (Lucena, 1954)
References
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