Amphidromus masoni

Amphidromus masoni
Shell of Amphidromus masoni (lectotype at Natural History Museum, London)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Camaenidae
Genus:	Amphidromus
Species:	A. masoni
Binomial name
Amphidromus masoni (Godwin-Austen, 1876)
Synonyms [1]
Amphidromus daflaensis(Godwin-Austen), Nevill, 1878 Bulimus masoniGodwin-Austen, 1876 superseded combination

Amphidromus masoni is a species of air-breathing, arboreal land snails in the family Camaenidae. ^[1]

Distribution

This species is endemic to Assam, India.

Description

The height of the shell attains 30.5 mm, its diameter 12.75 mm.

(Original description) This sinistral shell is acuminately oblong, thick, with a rather flattened spire. It comprises seven smooth and glossy whorls, exhibiting fine spiral striations under magnification. The shell's color is sea-green, intensifying below the keel and fading towards the apex. The columella is dark purple, and a narrow fillet of the same color closely borders the suture below, originating at the upper and outer angle of the aperture. The aperture is oval, angular above, with a slightly reflected lip. The body whorl is slightly keeled. ^[2]

References

1. Amphidromus masoni (Godwin-Austen, 1876) . 3 April 2025. Retrieved through: World Register of Marine Species .
2. Blanford, W.T. (1914). The fauna of British India, including Ceylon and Burma ... ed. by W.T. Blanford. London: Taylor & Francis. p. 181. 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. Zoological Survey of India, Kolkata, 359 pp.

External links

• Godwin-Austen, H.H. (1877). "On the Helicidae collected during the Expedition into the Dafla Hills, Assam". The Journal of the Asiatic Society of Bengal. 45: 316.
• Nevill, G. (1881). "New or little-known Mollusca of the Indo-Malayan fauna". The Journal of the Asiatic Society of Bengal. 50 (3): 134.
• 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. 189. Retrieved 15 May 2025. This article incorporates text from this source, which is in the public domain .
• Dey, A., Barua, S. & Mitra, S. C. (1985). "Namdapha Biosphere Reserve: Mollusca". Records of the Zoological Survey of India. 82 (1–4): 269–270.
• Sutcharit, Chirasak; Panha, Somsak (2006). "Taxonomic review of the tree snail Amphidromus Albers, 1850 (Pulmonata: Camaenidae) in Thailand and adjacent areas: Subgenus Amphidromus". Journal of Molluscan Studies. 72 (1): 1–30. doi:10.1093/mollus/eyi044.