Dioryx setchuanensis (Heude, 1885)
Alycoeus [sic] setchuanensis Heude, 1885: 97, pl. 24, figs 6, 6a-c.
Dioryx setchuanensis - Kobelt and Möllendorff 1897: 147; Kobelt 1902: 340; Páll-Gergely et al. 2017: 10.
Type locality.
"In ditione Tchen k’eou” .
Material examined.
China: Tchen-k’eou , coll. Farges, ex Mus. Heude, 1946, MCZ 167231 (4 syntypes).
Remarks.
Protoconch matte; R1 with inconspicuous, irregular growth lines and very fine, dense spiral striation (strength of spiral striation is variable); R2 smooth, with alternating lighter/slimmer and darker, slightly thicker stripes.
According to Johnson (1973) syntypes are also present in the USNM (inventory number: 472337).