Amphidromus roseolabiatus

Amphidromus roseolabiatus
Typical form of Amphidromus roseolabiatus
Form of Amphidromus roseolabiatus with white lip
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Camaenidae
Genus:	Amphidromus
Species:	A. roseolabiatus
Binomial name
Amphidromus roseolabiatus Fulton, 1896
Synonyms
Amphidromus (Amphidromus) roseolabiatusFulton, 1896· accepted, alternate representation Amphidromus arlingiThach, 2017 (junior synonym) Amphidromus arlingi arlingiThach, 2017 (junior synonym) Amphidromus arlingi daklakensisThach, 2017 (junior synonym) Amphidromus johnabbasiThach, 2017 (junior synonym) Amphidromus koonpoiThach & F. Huber, 2018 (junior synonym) Amphidromus phuonglinhaeThach, 2017 (junior synonym) Amphidromus phuonglinhae vinhensisThach & F. Huber, 2018 (junior synonym) Amphidromus poiThach, 2018 (incorrect original spelling) Amphidromus severnsi anhiThach, 2018 (junior synonym) Amphidromus severnsi improvidusPáll-Gergely, 2019 (junior synonym)

Amphidromus roseolabiatus is a species of terrestrial gastropod in the family Camaenidae. ^[1]

Distribution

Distribution of Amphidromus roseolabiatus includes central and northern Laos, Nan Province in Thailand and Phong Nha-Kẻ Bàng National Park in Vietnam. ^[2] Found in Karimganj District, Bazaricherra, Assam, India.

Description

The shell measures 24–42 mm (0.94–1.65 in) in height and 13–22 mm (0.51–0.87 in) in width. ^[2]

(Original description) The sinistral shell is ovate-conic, moderately umbilicate, and relatively solid. It consists of 6.75 slightly convex whorls, with a barely discernible peripheral angulation. The upper whorls are white, transitioning to pale lemon on the lower whorls, which are marked by close-set, oblique light green lines. The shell exhibits spiral striations. The outer lip and the columella are pink and expanded, with the lip slightly reflected. The aperture's interior is white. ^[3]

(Redescription) The shell is medium in size. It exhibits chirality dimorphism, and presents an elongate to ovate conical shape that is rather thin and glossy. The spire appears conical; the apex is acute and light brown, lacking a black spot on its tip. Comprising six to seven nearly smooth whorls, the shell displays a wide and depressed suture, and the body whorl is rounded. The periostracum is usually deciduous, sometimes showing yellowish-green radial streaks that appear more conspicuous on the body whorl and faded on earlier whorls. The body whorl features a thin, whitish subsutural band and may or may not have a reddish-brown spiral band on the periphery, though this band usually does not reach the apertural lip; a varix is absent. The parietal callus is thin and transparent. The aperture is ovate to elongate; the peristome is expanded and not reflected; the lip is usually purplish-pink. The columella is straight, thickened, and purplish-pink. The umbilicus is narrowly opened. ^[4]

Reproductive system of Amphidromus roseolabiatus.

Central part of radula of Amphidromus roseolabiatus.

Lateral teeth of radula.

Outermost marginal teeth of radula.

Aestivating Amphidromus roseolabiatus inside sterile fronds of stag horn ferns, Platycerium .

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.). "Amphidromus roseolabiatus Fulton, 1896". MolluscaBase. World Register of Marine Species . Retrieved 16 June 2024.
2. Inkhavilay, Khamla; Sutcharit, Chirasak; Panha, Somsak (2017-06-13). "Taxonomic review of the tree snail genus Amphidromus Albers, 1850 (Pulmonata: Camaenidae) in Laos, with the description of two new species". European Journal of Taxonomy (330): 1–40. doi: 10.5852/ejt.2017.330 . Retrieved 2017-07-08.
3. Fulton H.C. (1896). A list of the species of Amphidromus, Albers, with critical notes and descriptions of some hitherto undescribed species and varieties. The Annals and Magazine of Natural History. ser. 6, 17: 66–94, pls 5–7 This article incorporates text from this source, which is in the public domain .
4. Jirapatrasilp, P., Huang, Chih-Wei, Sutcharit, C., Lee, Chi-Tse. (2024). "The arboreal snail genus Amphidromus Albers, 1850 (Eupulmonata, Camaenidae) of Southeast Asia: 1. Molecular systematics of some Vietnamese species and related species from Cambodia, Indonesia, and Laos". ZooKeys (1196): 15–78. Bibcode:2024ZooK.1196...15J. doi: 10.3897/zookeys.1196.112146 . PMC   10980882 . PMID   38560093. This article incorporates text from this source, which is in the public domain .

• Thach N.N. (2017). New shells of Southeast Asia. Sea shells & Land snails. 48HrBooks Company. 128 pp.^{[ self-published source ]}
• Thach, N. N. (2018). New shells of South Asia. Seashells-Landsnails-Freshwater Shells. 3 New Genera, 132 New Species & Subspecies. 48HRBooks Company, Akron, Ohio, USA. 173 pp.^{[ self-published source ]}
• Thach N.N. (2020). Remarks on Amphidromus reflexilabris Schepman, 1892, Amphidromus roseolabiatus Fulton, 1896, Amphidromus anhduongae Thach, 2020 and correction of errors in “New Shells of South Asia, Volume 2”. The Festivus. 52(4): 359-362.

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. 188. Retrieved 15 May 2025. This article incorporates text from this source, which is in the public domain .
• Inkhavilay, Khamla; Sutcharit, Chirasak; Bantaowong, Ueangfa; Chanabun, Ratmanee; Siriwut, Warut; Srisonchai, Ruttapon; Pholyotha, Arthit; Jirapatrasilp, Parin; Panha, Somsak (2019). "Annotated checklist of the terrestrial molluscs from Laos (Mollusca, Gastropoda)". ZooKeys (834): 1–166. Bibcode:2019ZooK..834....1I. doi: 10.3897/zookeys.834.28800 . PMC   6495053 . PMID   31105437.
• Jirapatrasilp, P., Huang, Chih-Wei, Sutcharit, C., Lee, Chi-Tse. (2024). "The arboreal snail genus Amphidromus Albers, 1850 (Eupulmonata, Camaenidae) of Southeast Asia: 1. Molecular systematics of some Vietnamese species and related species from Cambodia, Indonesia, and Laos". ZooKeys (1196): 15–78. Bibcode:2024ZooK.1196...15J. doi: 10.3897/zookeys.1196.112146 . PMC   10980882 . PMID   38560093.