Amphithalamus sundayensis
| Amphithalamus sundayensis | |
|---|---|
| |
| Shell of Amphithalamus sundayensis | |
Scientific classification 
| |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Anabathridae |
| Genus: | Amphithalamus |
| Species: | A. sundayensis
|
| Binomial name | |
| Amphithalamus sundayensis W. R. B. Oliver, 1915
| |
| Synonyms[1] | |
|
Amphithalamus (Notoscrobs) sundayensis (W. R. B. Oliver, 1915) alternative representation | |
Amphithalamus sundayensis is a species of minute sea snails, marine gastropod molluscs or micromolluscs in the family Anabathridae.[1]
Description
The length of the shell attains 1.2 mm, its diameter 0.6 mm.
(Original description) The shell is minute and ovate, with a blunt apex. It features four flattened whorls and an impressed suture. The aperture is detached, broadly elliptical, and slightly angled behind. The peristome is thickened, and a ridge connects its posterior end with the body whorl. The umbilical furrow is wide.
The whole shell appears quite smooth. Its colour is light olive-brown, with the suture, peristome, and lower part of the body whorl being darker.[2]
Distribution
This species is endemic to New Zealand and occurs off the Kermadec Islands.
References
- ^ a b Amphithalamus sundayensis W. R. B. Oliver, 1915). 24 May 2025. Retrieved through: World Register of Marine Species.
- ^ Oliver, W.R. (1915). "Mollusca of the Kermadec Isl". Transactions and Proceedings of the New Zealand Institute. 47: 521. Retrieved 24 May 2025.
This article incorporates text from this source, which is in the public domain.
- Spencer, H.G., Marshall, B.A. & Willan, R.C. (2009). Checklist of New Zealand living Mollusca. Pp 196-219. in: Gordon, D.P. (ed.) New Zealand inventory of biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. Canterbury University Press, Christchurch.