| Alvania interrupta | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Superfamily: | Rissooidea |
| Family: | Rissoidae |
| Genus: | Alvania |
| Species: | †A. interrupta |
| Binomial name | |
| †Alvania interrupta (H. J. Finlay, 1924) | |
| Synonyms | |
| |
Alvania interrupta is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.
Description
This species is characterized by its irregularly-placed spiral ribs, these being crowded anteriorly, but almost absent posteriorly, so that spire-whorls have only two distinct ribs close to suture below. There are, however, traces of faint flattish ribs with linear interstices between these and suture above, and a distinct groove crosses ribs just below suture.
Distribution
Fossils of this marine species were found in Tertiary strata in New Zealand
References
- MolluscaBase eds. (2024). MolluscaBase. Alvania interrupta (H. J. Finlay, 1924) †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=832775 on 2024-02-14
- Finlay H.J. (1924). New Zealand Tertiary rissoids. Transactions of the New Zealand Institute. 55: 480-494.
This article incorporates text from this source, which is in the public domain.
External links
| Taxon identifiers | |
|---|---|
| Alvania interrupta | |