Dicharax duoculmen (Godwin-Austen, 1914)

Fig. 40A–E

Alycaeus duoculmen Godwin-Austen, 1914: 365, pl. 157 figs 2, 2a.

Alycaeus (Raptomphalus) duoculmen – Gude 1921: 286–287.

Chamalycaeus (Raptomphalus) duoculmen – Ramakrishna et al. 2010: 68.

Dicharax (?) duoculmen – Páll-Gergely et al. 2020: 86.

Type material examined

INDIA • holotype (single shell mentioned in the original description: Fig. 40A–E); Tsanspu Valley; Oakes leg.; NHMUK 1903.7.1.3582 .

Type locality

“Tsanspu Valley”.

Differential diagnosis

The most similar species is D. magnificus, which has a stronger R1 sculpture, a more strongly fringed aperture and a sharper keel on the umbilical side of R2.