Amphidromus atricallosus

Amphidromus atricallosus
Dorsal view of Amphidromus atricallosus perakensis
Frontal view of Amphidromus atricallosus perakensis
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Camaenidae
Genus:	Amphidromus
Species:	A. atricallosus
Binomial name
Amphidromus atricallosus (Gould, 1843)
Synonyms [1]
Bulimus atricallosus A. Gould, 1843 Bulimus eques L. Pfeiffer, 1857 Amphidromus eques (L. Pfeiffer, 1857)

Amphidromus atricallosus is a species of air-breathing, arboreal land snails in the family Camaenidae. ^{[1] [2]}

Subspecies

• Amphidromus atricallosus atricallosus(Gould, 1843) ^[3]
• Amphidromus atricallosus classiariusSutcharit & Panha, 2006 ^[3]
• Amphidromus atricallosus perakensisFulton, 1901 ^[3]
• Amphidromus atricallosus temasek Tan, Chan & Panha, 2011 ^[4]

Synonyms

• Amphidromus atricallosus leucoxanthus(von Martens, 1864): ^[3] synonym of Amphidromus leucoxanthus (E. von Martens, 1864) (unaccepted rank)
• Amphidromus atricallosus vovanaeThach, 2019: synonym of Amphidromus comes (L. Pfeiffer, 1861) (unaccepted > junior subjective synonym)

Distribution

Distribution of Amphidromus atricallosus and its subspecies include:

• Southern Myanmar ^[2]
• Southern and eastern Thailand including Sakaeo Province, Thailand. ^{[2] [5]}
• Widely distributed in Peninsular Malaysia. ^{[2] [4] [6]}
• Singapore ^[4]

Description

Amphidromus atricallosus leucoxanthus shell.

Amphidromus atricallosus perakensis shell.

The height of the shell attains 59 mm, its diameter 25 mm.

This imperforate shell is elongated ovate, solid, smooth, and glossy, with a sulfur-yellow coloration. It comprises seven moderately convex whorls, slightly constricted near the suture. The body whorl constitutes nearly two-thirds of the shell's length. The aperture is ovate-lunate, somewhat angular and slightly effuse at the base. The lips are white, broadly revolute, and not flattened. The columella is white, and the callus uniting the peristome extremities, as far as visible within the shell, is pitch-black. A line of the same color, indicating a former growth stage, extends from its center across the penultimate whorl. ^[7]

References

1. Bieler R, Bouchet P, Gofas S, Marshall B, Rosenberg G, La Perna R, Neubauer TA, Sartori AF, Schneider S, Vos C, ter Poorten JJ, Taylor J, Dijkstra H, Finn J, Bank R, Neubert E, Moretzsohn F, Faber M, Houart R, Picton B, Garcia-Alvarez O, eds. (2024). "Amphidromus atricallosus (A. Gould, 1843)". MolluscaBase. World Register of Marine Species . Retrieved 15 June 2024.
2. Laidlaw, Frank Fortescue; Solem, George Alan (1961). "The land snail genus Amphidromus: a synoptic catalogue". Fieldiana Zoology. 41 (4): 505–677. doi: 10.5962/bhl.title.2832 .
3. 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.
4. Tan, S. K.; S. Y. Chan; S. Panha (2011). "A new subspecies of Amphidromus (Amphidromus) atricallosus from Singapore (Mollusca: Gastropoda: Camaenidae)" (PDF). Raffles Bulletin of Zoology. 59: 39–46.
5. Boon-ngam P.; Sriyarun J.; Tanamai S.; Dumrongrojwattana P. (2010). "การศึกษาเบืองต้ นความหลากชนิดของหอยทากบก และหอยนําจืดในจังหวัดสระแก้" [Preliminary taxonomic study of land snail and freshwater mollusk species in Sakaeo Province, Eastern Thailand]. Proceedings of 48th Kasetsart University Annual Conference: Science (in Thai). pp. 151–160.
6. Foon, Junn Kitt; Clements, Gopalasamy Reuben; Liew, Thor-Seng (2017-04-07). "Diversity and biogeography of land snails (Mollusca, Gastropoda) in the limestone hills of Perak, Peninsular Malaysia". ZooKeys (682): 1–94. Bibcode:2017ZooK..682....1F. doi: 10.3897/zookeys.682.12999 . PMC   5523159 . PMID   28769723 . Retrieved 2017-07-10.
7. Blanford, 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 .

External links

• Gould, A.A. (1843). "Shells not long since announced as having been received from the Rev. Francis Mason, missionary at Tavoy, in British Burmah". Proceedings of the Boston Society of Natural History. 1: 140. Retrieved 3 April 2025.
• 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. 165. Retrieved 15 May 2025. This article incorporates text from this source, which is in the public domain .