Dicharax lenticulus ( Godwin-Austen, 1874 )

Dicharax lenticulus ( Godwin-Austen, 1874) View in CoL

Fig. 63

Alycaeus lenticulus Godwin-Austen, 1874: 147 View in CoL .

Alycaeus lenticulus View in CoL – Godwin-Austen 1914: 340–341, pl. 136 figs 2, 2a.

Alycaeus ( Dicharax) lenticulus View in CoL – Gude 1921: 259–260.

Chamalycaeus ( Dicharax) lenticulus View in CoL – Ramakrishna et al. 2010: 63

Dicharax (?) lahupaensis View in CoL – Páll-Gergely et al. 2020: 92 View Cited Treatment .

Type material examined

INDIA • holotype (single shell mentioned in the original description: Fig 63F–J); Darjeeling ; Godwin-Austen coll.; NZSI M.8075 • several shells ( Fig. 63A–E); Rissom Pk. ( W. Bhutan); Godwin-Austen Coll.; NHMUK 1903.07 About NHMUK .01.2552 .

Type locality

“Darjeeling”.

Differential diagnosis

Dicharax nongtungensis is smaller, has a thicker peristome and a narrower umbilicus. Dicharax politus has a more depressed shell and a more strongly inflated R3 swelling. See also under D. dalingensis , D. ganeshaiahi sp. nov., and D. nattoungensis .

Remarks

This species was described based on a strongly corroded shell ( Godwin-Austen 1874). Later, Godwin-Austen (1914) provided a more complete description and drawings based on multiple additional specimens. We received photos of the holotype ( Fig. 63F–J) from the Zoological Survey of India, and could confirm that the figured shell ( Fig. 63A–E) is conspecific with the holotype.