114 PKOCEEDINGS OP THE MALACOLOGICAL SOCIETY. 



introduced only two of Gray's varietal names, C. amhica var. 

 intermedia and var. depressa. 



Two of Gray's varietal names were afterwards used for designating 

 the same shells, but raised to specific value. 



Cyprcea algoensis 13. edentula is identical with the shell described 

 as " Gyprcea edentula nobis " by Sowerby in 1837 (Conch. Illustr., 

 Cat. Cyprcea, p. 10). Gray's words, " with the teeth more or less 

 obliterated," cited by Sowerbv, are not found in the Zool. Journ. 

 (D. 498) ; they must be taken from Gray's " Descr. Cat." (1832, 

 only a manuscript work ! ), where edentula must have been cited 

 only as " algoensis var." (without any name). The name given by 

 Gray was, I presume, well known to Sowerby, and he therefore used 

 it, but he was right to add " nobis ", for he raised the name previously 

 suppressed by its first author, Gray, to specific rank. 



Cyprcea pediculus /3. suffusa (E. 370) is identical with Cyprcea 

 (now Trivia) suffusa of Gray's " Descr. Cat." and of Sowerby's 

 " Conch. Illustr." (1832, fig. 41) and his " Cat. rec. sp. Cyprcea " 

 (1837, p. 13). Contrary to edentula, the name given to the variety 

 suffusa in 1827 was adopted by its author in 1832 as of specific rank, 

 and subsequently by Sowerby and all later writers. 



Gray's named varieties are as follows : — 



CYPE^A. 



C. MAPPA, Linn., var. rosea. Gray (1824). 

 A. 75. — The description and Sowerby's figure prove it to be the 

 same as var. subsignata, Melv. (1888), which latter becomes a 

 synonym of var. rosea. Born's figure represents quite another shell, 

 which is allied to var. panerythra, Melv. 



C. ARABiCA, Linn., var. intermedia, Gray (1824). 

 A. 77. — -A slight variety of the typical arabica, to be distinguished 

 by the thickened margin and the dorsal markings ; it connects 

 arabica, s. str., with its subsp. reticulata, MsiTtyn. 



C. ARABICA, Linn., var. histrio, Meuschen (1787). 

 A. 77. — Gray's variety contains two subsp. of arabica now con- 

 sidered as distinct, viz. histrio (Meusch.), Gmel. (1790), &nd reticulata, 

 Martyn (178^). 



C. ARABICA, Linn., var. depressa, Gray (1824). 

 A. 77. — A slight variety of arabica, subsp. histrio, Gmel. ; it agrees 

 with it by the shape, the straight aperture, and the similar drawing 

 on the back of the shell ; but the thickened margins remind one of 

 subsp. reticulata, Martyn. C. arabica, subsp. gillei, Jouss., has the 

 anterior extremity very broad and almost square, but depressa is 

 attenuated and triangular. 



C. stercoraria, Linn., var. rattus. Lam. (1810). 

 A. 80, B. 137. — To be now known as stercoraria var. conspurcata, 

 Gmel. (1790) (see note on C. stercoraria). 



