Pincerna major (Godwin-Austen, 1893)
Alycaeus otiphorus var. - Godwin-Austen 1871: 93, pl. 5, fig. 6.
Alycaeus (Dioryx) granum var. major Godwin-Austen, 1893: 594.
Alycaeus (Cycloryx) mangutensis Godwin-Austen, 1914: 377-378, pl. 146, figs 5, 5a.
Alycaeus (Cycloryx) mangutensis - Gude 1921: 282.
Cycloryx mangutensis - Ramakrishna et al. 2010: 72.
Type locality.
"Mangut Valley, Jaintia Hills".
Material examined.
Mangat valley, Jiantia Hills, leg. Godwin-Austen, NHMUK 1903.7.1.2518 (8 syntypes).
Remarks.
Protoconch matte, R1 with regular, widely spaced, rather low ribs; no spiral striation observed; R2 very short, with ca. four ribs which are similar to the ones on R1 in terms of density and morphology.
This species was described as A. mangutensis by Godwin-Austen in 1914, and that name was later used as a valid taxon name (Gude 1921; Ramakrishna et al. 2010). However, the name Alycaeus (Dioryx) granum var. major Godwin-Austen, 1893 for the same taxon was validly introduced, and is available. Thus, the species must be called Pincerna major (Godwin-Austen, 1893), and the name Alycaeus mangutensis Godwin-Austen, 1914 is a junior objective synonym.