Araiofusus colpoicus
| Araiofusus colpoicus | |
|---|---|
| Shell of Araiofusus colpoicus (holotype at the Smithsonian Institution) | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Family: | Fasciolariidae |
| Genus: | Araiofusus |
| Species: | A. colpoicus
|
| Binomial name | |
| Araiofusus colpoicus (Dall, 1915)
| |
| Synonyms | |
|
Fusinus colpoicus Dall, 1915 (original combination) | |
Araiofusus colpoicus is a species of sea snail, a marine gastropod mollusk in the family Fasciolariidae, the spindle snails, the tulip snails and their allies.[1]
Description
(Original description) This species resembles Barbarofusus barbarensis (Trask, 1855) when the latter reaches approximately 60 mm in length.
It is distinguishable from B. barbarensis by the following features:
Axial Ribs: It possesses 13 axial ribs (versus 11 in B. barbarensis). These ribs are narrower and separated by wider interspaces.
Spiral Sculpture: The revolving threads are notably sharper and exhibit a more conspicuous alternation in size.
Whorl Sculpture: On the penultimate whorl, there are 6 major and 6 minor spiral threads that cross the axial ribs without forming nodules.
At a total length of 66 mm (excluding the eroded nucleus), the shell has 8 whorls. The aperture and siphonal canal measure a combined 36 mm. The siphonal canal itself is conspicuously tortuous (twisted).[2]
Distribution
This marine species occurs in the Gulf of California
References
- ^ Araiofusus colpoicus (Dall, 1915). 11 October 2025. Retrieved through: World Register of Marine Species.
- ^ Dall, W.H. (1915). "Notes on the West American species of Fusinus". The Nautilus. 29 (5): 54. Retrieved 11 October 2025. This article incorporates text from this source, which is in the public domain.