Amphidromus masoni (Godwin-Austen, 1876)

Sutcharit, Chirasak, Ablett, Jonathan, Tongkerd, Piyoros, Naggs, Fred & Panha, Somsak, 2015, Illustrated type catalogue of Amphidromus Albers, 1850 in the Natural History Museum, London, and descriptions of two new species, ZooKeys 492, pp. 49-105 : 69

Taxon classification Animalia Stylommatophora Camaenidae

Amphidromus masoni (Godwin-Austen, 1876)

Bulimus masoni Godwin-Austen, 1876: 316.

Type locality.

Dihiri Parbat, 2000 feet [Dafla Hills, Assam, India].

Type material.

Lectotype (design. n.), NHMUK 1903.7.1.1908 (Figs 2C, 11C; H=30.7 mm, W=17.7 mm).

Remarks.

Godwin-Austen (1876) stated that there were two specimens in the type series. Only a single specimen from the Godwin-Austen type lot remains in the NHM collections (Fig. 2C). Laidlaw and Solem (1961: 639) considered this specimen to be the holotype. This should be interpreted as an inadvertant lectotype designation ( ICZN 1999: Art. 74.6). The apex of the lectotype has been damaged at around the second and third whorls and the shell height is much smaller than it would have been if undamaged.