Amphidromus leucoxanthus (Martens, 1864)

Sutcharit, Chirasak, Thach, Phanara, Chhuoy, Samol, Ngor, Peng Bun, Jeratthitikul, Ekgachai, Siriwut, Warut, Srisonchai, Ruttapon, Ng, Ting Hui, Pholyotha, Arthit, Jirapatrasilp, Parin & Panha, Somsak, 2020, Annotated checklist of the land snail fauna from southern Cambodia (Mollusca, Gastropoda), ZooKeys 948, pp. 1-46 : 1

Amphidromus leucoxanthus (Martens, 1864) Figs 5A , 11D

Bulimus leucoxanthus Martens, 1864: 526. Type locality: unknown.

Amphidromus (Amphidromus) atricallosus leucoxanthus : Sutcharit and Panha 2006: 20, 21, figs 3p, 4a-e, 10d-f, 12b, 14c, d, 15c.

Material examined.

Locality no. 7: CUMZ-CM018 (2 shells; Fig. 11D ), CUMZ-CM020 (2 specimens in ethanol; Fig. 5A ). The snails were found to live on tree trunks and leaves.

Distribution.

Eastern Thailand ( Sutcharit and Panha 2006).

Remarks.

This species has been formerly treated as a subspecies within A. atricallosus ( Sutcharit and Panha 2006). However, this species differs from A. atricallosus by having an elongate conic shell with thick or thin and whitish parietal callus, while A. atricallosus usually has a more ovate shell, with thickened and black parietal callus. In addition, A. leucoxanthus tends to be distributed in the eastern part of Thailand and in Cambodia, while A. atricallosus occurs in eastern and southern Thailand along the Tenasserim ranges and in southern Myanmar. Moreover, molecular phylogenetic data suggested a distinct lineage between A. leucoxanthus and A. atricallosus ( Sutcharit et al. 2007).

Figures

Figure 5. Living snails of A Amphidromus leucoxanthus (Martens, 1864) B Trichochloritis norodomiana (Morlet, 1883) C Ganesella perakensis (Crosse, 1879) D, E Anceyoconcha rhombostoma (Pfeiffer, 1861) D brownish morph and E dark brown morph and F Anceyoconcha chaudoensis (Rochebrune, 1881) comb. nov. All not to scale.

Figure 11. A Cambodiparmarion doroshenkoi Kuznetsov & Kuzminykh, 1999 B Parmarion martensi Simroth, 1893 C Sesara sp. D Amphidromus leucoxanthus (Martens, 1864) E Amphidromus semitessellatus (Morlet, 1885) and F Trichochloritis norodomiana (Morlet, 1883).