"1. Pupa regia, nobis.
T. profundissime umbilicata, elongato-conica, subcylindrica, solida, alba, laevigata, nitidiuscula, oblique et remote, obsoleteque plicato-striata; spira superne sensim attenuata, apice obtusiusculo; umbilico pervio; anfractibus undecim subplanulatis, ultimo antice ascendente, validius plicato, ad basin compresso; sutura lineari, irregulariter crenata; apertura oblique truncate-ovata, sublaterali, ab axe deviante, intus fulvida; plica columellari profunda, duplicata, parietali elongata, remotiuscula; peristomate valde incrassato, reflexo, subtus latiori, marginibus callo junctis, columellari expanso, superne sinuato, extus angulum efformante, dextro medio atrorsum acuto.
Long. 43 mill., lat. 23; aperturae long. Perist. Incl. 18 mill Lat. 9 millim.
Hab. prope Nanking, China.
Brought by the late Dr. D. King, H.M.S. Cornwallis, and presented by him to Dr. Cantor, to whose kindness I am indebted for the specimen. A wire introduced into the umbilicus will reach within a short distance of the summit." (Benson, 1849:125-126)