Agathistoma nordestinum
Agathistoma nordestinum is a species of sea snail, a marine gastropod mollusk in the family Tegulidae.[1] It is endemic to Brazil, and is known to occur in the northeastern region of the country.
| Agathistoma nordestinum | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Superfamily: | Trochoidea |
| Family: | Tegulidae |
| Genus: | Agathistoma |
| Species: | A. nordestinum |
| Binomial name | |
| Agathistoma nordestinum Dornellas, Gabroski, Hellberg & Lotufo, 2021 | |
Distribution
Agathistoma nordestinum occurs in northeastern Brazil, from the state of Maranhão to Bahia, and is usually found between rocks at 1–2 meters during the low tide.[1]
Description and etymology
The shell of this species has five whorls and attains 13 mm in height, with a maximum width of 10 mm. It is globose, with a rounded profile between the spire and base and has a marked keel forming a slight shoulder. It is coloured yellow cream at the base, with axially aligned irregular dark brownish or light brown blotches.[1] The specific epithet nordestinum is a reference to Northeast Brazil. In Portuguese, people born in this region are called nordestinos.[1]
References
- Dornellas, Ana P.; Graboski, Roberta; Hellberg, Michael E.; Lotufo, Tito M. C. (2022). "Phylogeography of Agathistoma (Turbinidae, Tegulinae) snails in tropical and southwestern Atlantic". Zoologica Scripta. 51 (1): 76–90. doi:10.1111/zsc.12517. S2CID 243902047.