// Workers AI · dad joke modeWhat did Penion roblini say? "I'm a little shell-shocked.
| Penion roblini | |
|---|---|
 | |
| Shell of Penion roblini (holotype) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Family: | Austrosiphonidae |
| Genus: | Penion |
| Species: | †P. roblini |
| Binomial name | |
| †Penion roblini (Tenison Woods, 1876) | |
| Synonyms | |
| |
Penion roblini is an extinct species of marine snail or whelk, belonging to the true whelk family Austrosiphonidae. [1]
- Subspecies:
- † Penion roblini roblini (Tenison Woods, 1876)
- † Penion roblini simulans (Tate, 1888)
Description
[edit](Original description) The shell is twisted and fusiform in shape, consisting of seven whorls that are finely spirally sulcate and striate. A row of sub-distant, somewhat sharp tubercles is situated on the outer sloping margin, where the whorl is angulated. There are thirteen of these tubercles present on the body whorl. The aperture is elongately pyriform, while the columella (is twisted and the siphonal canal is recurved. [2]
Distribution
[edit]Fossils of Penion proavitus are found in Tertiary strata on Tasmania.
References
[edit]- ↑ Penion roblini (Tenison Woods, 1876)). 26 April 2026. Retrieved through: World Register of Marine Species.
- ↑ Tenison Woods, J.E. (1876). "On some Tertiary fossils from Table Cape". Papers and Proceedings and Report of the Royal Society of Tasmania for 1875. 1876: 22. Retrieved 26 April 2026.
This article incorporates text from this source, which is in the public domain.
External links
[edit]- Ponder, W.F. (1973). "A review of the Australian species of Penion Fischer (Neogastropoda: Buccinidae)". Journal of the Malacological Society of Australia. 2 (4): 401–428. doi:10.1080/00852988.1973.10673868.