Dicharax stoliczkii ( Godwin-Austen, 1874 )

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

Fig. 82

Alycaeus Stoliczkii Godwin-Austen, 1874: 147 View in CoL , pl. 3 fig. 3.

Alycaeus ( Charax) peilei Preston, 1914: 22–23 View in CoL , figure on page 23. Syn. nov.

Alycaeus stoliczkii View in CoL – Sowerby 1877: pl. 6, species 53. — Godwin-Austen 1914: 399–400, pl. 144 figs 3, 3a–b.

Alycaeus ( Chamalycaeus) stoliczkai View in CoL [sic] – Kobelt 1902: 363. — Gude 1921: 233–234.

Alycaeus peilei View in CoL – Godwin-Austen 1914: 397–398.

Alycaeus ( Dicharax) peilei View in CoL – Gude 1921: 264.

Chamalycaeus ( Chamalycaeus) stoliczkai View in CoL [sic] – Ramakrishna et al. 2010: 55.

Chamalycaeus ( Dicharax) peilei View in CoL – Ramakrishna et al. 2010: 65.

Dicharax (?) peilei View in CoL – Páll-Gergely et al. 2020: 101 View Cited Treatment .

Dicharax (?) stoliczkii View in CoL – Páll-Gergely et al. 2020: 104 View Cited Treatment .

Diagnosis

The large shell size, the long R2+R3, and the aperture shape distinguish this species from all other Alycaeinae .

Type material examined

INDIA • 3 syntypes of A. stoliczkii ( Fig. 82A–E); Naga Hills; NHMUK 1903.7 About NHMUK .1.2622 • 1 syntype of A. peilei ( Fig. 82F–J); Naga Hills; Preston coll.; NHMUK 1915.1 About NHMUK .4.1281 .

Type localities

“Angaoluo Peak, Nágá Hills at 7,000 feet ”; “further to the east at Kezakenomih, and at the head of the Lanier River at ca. 5,000 feet where the specimens are much larger” ( A. stoliczkii ); “ Naga Hills” ( A. peilei ).

Differential diagnosis

The most similar species is D. glaber , but D. stoliczkii has a more oval shell (rather rounded in D. glaber ), a fringed aperture and a secondary swelling touching the penultimate whorl near the peristome.

Remarks

Alycaeus ( Charax) peilei is identical with Alycaeus stoliczkii and therefore it is treated as a junior synonym. In the original description of the first species, Preston (1914) did not compare his new species with any other species.