Amphithalamus incidatus

Amphithalamus incidatus
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Family:	Anabathridae
Genus:	Amphithalamus
Species:	A. incidatus
Binomial name
	Amphithalamus incidatus; (Frauenfeld, 1867)
Synonyms
	Amphithalamus (Amphithalamus) incidatus (Frauenfeld, 1867) alternative representation; Notoscrobs (Microfossa) incidata (Frauenfeld, 1867) (incorrect gender ending); Notoscrobs (Microfossa) incidatus (Frauenfeld, 1867) ·; Sabanaea incidata Frauenfeld, 1867;

Amphithalamus incidatus is a species of minute sea snails, marine gastropod mollusks or micromollusks in the family Anabathridae.^[1]

Subspecies

Amphithalamus incidatus incidatus (Frauenfeld, 1867)
Amphithalamus incidatus maoria (Ponder, 1968)

Description

The length of the shell attains 1.4 mm, its diameter 0.7 mm.

(Original description in Latin) The shell is conical, robust, brown, smooth, and weakly shiny. It possesses five flat whorls, with edges sharply constricted on both sides, so that the suture lies as if in a deepened groove. The aperture is rounded, angled at the top, and measures less than half the shell's height; its rim is thickened.^[2]

Distribution

This species is endemic to Australia and occurs off New South Wales, Queensland, South Australia, Tasmania, Victoria and Western Australia.

References

^ ^a ^b Amphithalamus incidatus (Frauenfeld, 1867). 22 May 2025. Retrieved through: World Register of Marine Species.
^ Frauenfeld, G. von (1867). Mollusken. In: Reise der österreichischen Fregatte Novara um die Erde in den Jahren 1857, 1858, 1859 unter den Befehlen des Commodore B. von Wüllerstorf-Urbair. Zoologischer Theil. Zweiter Band. Dritte Abtheilung. Wien: Karl Gerold's Sohn. p. 12. This article incorporates text from this source, which is in the public domain.

Chapman, M.G., Underwood, A.J. & Blockley, D. 2008. Effects of method of deployment of artificial units of habitat on microgastropod colonization. Marine Ecology Progress Series 366: 49-57
Cotton, B.C. 1944. Recent Australian species of the family Rissoidae (Mollusca). Transactions of the Royal Society of South Australia 68(2): 286-314
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.

External links

Seashells of New South Wales: image and description

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[WoRMS-1] Amphithalamus incidatus (Frauenfeld, 1867). 22 May 2025. Retrieved through: World Register of Marine Species.

[2] Frauenfeld, G. von (1867). Mollusken. In: Reise der österreichischen Fregatte Novara um die Erde in den Jahren 1857, 1858, 1859 unter den Befehlen des Commodore B. von Wüllerstorf-Urbair. Zoologischer Theil. Zweiter Band. Dritte Abtheilung. Wien: Karl Gerold's Sohn. p. 12. This article incorporates text from this source, which is in the public domain.

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