C. EBRÆUS. _C._ ovatus albus fasciis nigris ex maculis transversis. "Pet. Gaz. t. 99. f. 12." was quoted. C. STERCUS-MUSCARUM. _C._ emarginatus, basi striatus, spiræ anfractibus canaliculatis. Of the two species confounded under this designation the _C. arenarius_ appeared as a variety in the manuscript. Of the typical form "Spira lævi," "Pet. Gaz. t. 75. f. 1," and "Rumph. Mus. t. 33. f. Z," were cited as illustrations; the other synonyms were ascribed to "Var. α. coronatus spinis obtusis." The colouring was not mentioned. C. VARIUS. _C._ scabro-coronatus, elongatus, spira coronata acuta. C. GRANULATUS. _C._ scaber inermis, striis lævibus. The original size indicated was "magnitudine coryli." C. MAGUS. _C._ subcylindricus, fasciis longitudinalibus albo punctatis. The erroneous figure of d'Argenville was not referred to; and the 32, Q (as in the 'Systema'), not 34, A, of Rumphius was quoted as illustrative. The final remark had been interpolated by Linnæus. C. STRIATUS. _C._ ovato-oblongus gibbus nebulosus, striis tenuissimis parallelis fuscis. The "Cæterum testa minus ante convoluta est," is a press addition. "Pet. Gaz. t. 98. f. 9." was correctly cited. C. TEXTILE. _C._ pictus venis reticulatis luteis, maculis luteis fuscisque. The intended name (_C. drador_) was an amusing specimen of conchological Latin: it was of course borrowed from d'Argenville's appellation of "_Drap d'or_." "Columella ad postica quasi replicata est" was added in the printing; the "luteo" was originally "albo"; the "subconica" was "anfractibus subconicis"; and there was no mention of a variety. C. AULICUS. _C._ pictus venis reticulatis fasciisque longitudinalibus interruptis fuscis. "Columella postice replicata est," and the objectionable "obovato-sub," were not in the copy. No figures were cited in the original catalogue. C. SPECTRUM. _C._ cærulescens, flavo-nebulosus, punctis striisque alboluteis. The original description did not comprise those characteristics which are so much at variance with the essentials of the _C. spectrum_ of authors. The following passages were omitted: "gibba, minus arcte convoluta" (this replaced "conica"), "Columella postice striata et replicata. Intus testa sub-cærulescens," "mucrone cingulis granulato." C. BULLATUS. _C._ flavus, albo nebulosus. The account of the variety, and the "vix tuberculata," were absent from the manuscript. C. GEOGRAPHUS. _C._ oblongus gibbus coronatus. The Rumphian name was the one attached to this species in the written copy. C. TEREBELLUM. _C._ scaber inermis, striis tuberculatis. The synonyms attached to the published details were "Gualt. Test. t. 25. f. L.--Arg. Conch. t. 16. f. P.--Rumph. t. 33. f. EE." Now these harmonize with both the heading and the description, and clearly indicate the _C. Nussatella_ of the 'Systema'!