A strange confusion took place between the details of C. senator and C. Genuanus. The published description belonged to the former, the synonym the latter, and should have preceded the following brief description:
"Testa conica, pallida, glauca, oblongiuscula. Lineæ 19 transversæ fusco-nigræ s. purpurascentes albo interruptæ, alternæ sæpe angustiores. Spira subconica, obtusa."
C. glaucus. C. emarginatus, basi striatus, spiræ inermis anfractibus convexis.
C. monachus. C. gibbus acutus, fusco-cærulescente nebulosus, basi striatus.
Bonanni was not quoted in the written copy.
C. minimus. C. cinerascens, punctis oblongis cinctus.
The original description has been much altered by Linnæus. It ran as follows: "Testa ovata, glauco-cinerea, gibba, striæ transversales plus 30 punctis fuscis oblongis. Spira convexa, alba, maculis fuscis magnis transversis." The cited figure does not even suit these meagre characteristics, which might have been equally applied to C. glaucus.
C. rusticus. C. ovatus, basi rugoso-scaber, spira conica convexa.
The variety was not noticed, and d'Argenville was not quoted in the original catalogue. "Flavo et glauco" should have been "flavo aut glauco," as written.
C. mercator. C. ovatus, albus fasciis reticulatis flavis.