Roseaplagis caelatus
Species of gastropod
From Wikipedia, the free encyclopedia
Roseaplagis caelatus is a species of small sea snail in the family Trochidae, the top shells.[1]
| Roseaplagis caelatus | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Family: | Trochidae |
| Subfamily: | Cantharidinae |
| Genus: | Roseaplagis |
| Species: | R. caelatus |
| Binomial name | |
| Roseaplagis caelatus (Hutton, 1884) | |
| Synonyms[1] | |
| |
Description
It is smaller than Cantharidus sanguineus (height: 5.5 mm, diameter 4.5 mm) but it is more deeply ribbed and its grooves are wider.[2] The imperforate shell is more deeply ribbed, and the ribs narrower. They number 5 to 7 on the penultimate whorl, 15 to 16 on the body whorl. Sometimes they are obsoletely granose through being crossed by growth lines. The columella shows a slight swelling in the middle.[3]
Distribution
This marine species is endemic to New Zealand and occurs off the Foveaux Straits; Port Pegasus, Stewart Island; Snares and Bounty Islands
Subspecies
The former subspecies have been named:
- Micrelenchus caelatus archibenthicola Dell, 1956: synonym of Cantharidus caelatus mortenseni Powell, 1933; synonym of Roseaplagis mortenseni (Odhner, 1924)
- Micrelenchus caelatus bakeri Fleming, 1948: synonym of Roseaplagis artizona A. Adams, 1853 (Odhner, N.H.J., 1924)
- Micrelenchus caelatus elongatus (Suter, 1897): synonym of Cantharidus caelatus elongatus (Suter, 1897); synonym of Roseaplagis artizona A. Adams, 1853
- Micrelenchus caelatus morioria Powell, 1933: synonym of Cantharidus caelatus mortenseni Powell, 1933; synonym of Roseaplagis mortenseni (Odhner, 1924)
- Micrelenchus caelatus mortenseni (Odhner, 1924): synonym of Roseaplagis mortenseni (Odhner, 1924)