Amphidromus janus

Amphidromus janus
	specimen of Amphidromus janus
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Camaenidae
Genus:	Amphidromus
Species:	A. janus
Binomial name
	Amphidromus janus; (L. Pfeiffer, 1854)
Synonyms
	Amphidromus (Amphidromus) janus (L. Pfeiffer, 1854) alternative representation; Bulimus janus L. Pfeiffer, 1854 (original combination);

Amphidromus janus is a species of air-breathing tree snail, an arboreal gastropod mollusk in the family Camaenidae.^[1]

Description

The height of the shell attains 47 mm, its diameter 20 mm.

(Original description in Latin) This imperforate shell, which can be dextral or sinistral, is subfusiform-oblong, solid, and barely glossy. It is yellow with three external opaque green bands and internally glossy dark chestnut, the internal coloration not reaching the peristome. The basal band is very wide, and the shell is adorned with scattered chestnut varices. The spire is conical and rather sharp. The shell comprises six to seven somewhat convex whorls, with the body whorl occupying two-fifths of the shell's length and attenuated at the base. The columella is vertical and straight. The aperture is oblique, semi-oval, and subangulate at the base. The peristome is somewhat thickened, shortly reflexed, and white, with the margins joined by a dark chestnut callus. ^[2]^[3]

Distribution

This species is endemic to the Mergui Archipelago, Myanmar.

References

^ Amphidromus janus (L. Pfeiffer, 1854). 2 April 2025. Retrieved through: World Register of Marine Species.
^ Pfeiffer, L. (1854). "Description of eighteen new species of land shells, from the collection of H. Cuming, Esq". Proceedings of the Zoological Society of London. 20 (243): 85. Retrieved 2 April 2025. This article incorporates text from this source, which is in the public domain.
^ Blanfored, W.T. (1914). The fauna of British India, including Ceylon and Burma ... ed. by W.T. Blanford. London: Taylor & Francis. p. 184. Retrieved 2 April 2025. This article incorporates text from this source, which is in the public domain.

Laidlaw, F. F. & Solem, A. (1961). The land snail genus Amphidromus. A synoptic catalogue. Fieldiana: Zoology. 41: 503-677.
Ramakrishna, Mitra, S, C. & Dey, A. (2010). Annotated checklist of Indian land molluscs. Kolkata: Zoological Survey of India. p. 322.{{cite book}}: CS1 maint: multiple names: authors list (link)

External links

Tryon, George W., (George Washington), - Baker, H. Burrington (Horace Burrington), - Cooke, C. Montague (Charles Montague), - Hyatt, Alpheus, - Pilsbry, Henry Augustus (1900). Manual of conchology, structural and systematic : with illustrations of the species. Second series, Pulmonata (2 ed.). Philadelphia: published by the authors. p. 156. Retrieved 15 May 2025.{{cite book}}: CS1 maint: multiple names: authors list (link) This article incorporates text from this source, which is in the public domain.
Sutcharit C., Ablett J., Tongkerd P., Naggs F. & Panha S. (2015). "Illustrated type catalogue of Amphidromus Albers, 1850 in the Natural History Museum, London, and descriptions of two new species". ZooKeys (492): 83. Bibcode:2015ZooK..492...49S. doi:10.3897/zookeys.492.8641. PMC 4389215. PMID 25878542.{{cite journal}}: CS1 maint: multiple names: authors list (link)

[WoRMS-1] Amphidromus janus (L. Pfeiffer, 1854). 2 April 2025. Retrieved through: World Register of Marine Species.

[2] Pfeiffer, L. (1854). "Description of eighteen new species of land shells, from the collection of H. Cuming, Esq". Proceedings of the Zoological Society of London. 20 (243): 85. Retrieved 2 April 2025. This article incorporates text from this source, which is in the public domain.

[3] Blanfored, W.T. (1914). The fauna of British India, including Ceylon and Burma ... ed. by W.T. Blanford. London: Taylor & Francis. p. 184. Retrieved 2 April 2025. This article incorporates text from this source, which is in the public domain.

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