Dioryx feddenianus (Theobald, 1870)
Alycaeus Feddenianus Theobald, 1870: 397, pl. 18, fig. 4.
Alycaeus feddenianus - Reeve 1878: pl. 2, species 18.
Dioryx feddenianus - Kobelt and Möllendorff 1897: 146; Kobelt 1902: 338; Gude 1921: 199, fig. 32.
Alycaeus (Dioryx) feddenianus Godwin-Austen 1914: 415, pl. 153, fig. 12.
Type locality.
"Shan States".
Material examined.
Upper Salwin, NHMUK 1888.12.4.927-930 (4 shells).
Remarks.
Protoconch matte, without spiral striation; R1 with widely spaced spiral striae, and weaker, much denser radial lines; R2 exceeds 90°, it is smooth, with slimmer lighter and thicker darker stripes alternating.