SCHILDER : ON CYPRMA AND TRIVIA. Ill 



be changed ; the species having only one synonym, scabriuscula, 

 Kien. (1845) nee Gray (1827), I propose Trivia nix, m. nov. nom. 



Trivia pedicularis, Deshayes (1844). 

 Deshayes (1844) changed his own Cyprcea (now Trivia) lawMrcldi, 

 described in 1836, into pedicularis, for Gray had used this word for 

 a species in 1825 ; Sacco (1894, p. 50) had no right to again accept 

 the former name, though at that time both belonged to distinct 

 genera. Cossmann (1903 and 1911) cites this fossil species as Trivia 

 pedicularis, Desh., which name must stand. 



Trivia pulla, Gaskoin (1846). 

 This species, which has no synonyms or named varieties, is 

 described by Gaskoin as Gyprcea. Therefore its name is preoccupied 

 by Gmelin (1790, = onyx, Linn., var.) and must be changed. I 

 propose Trivia occidentalis, m. nov. nom. 



Trivia scabriuscula, Koenen (1890). 

 Koenen (1890, Abhandl. z. geol. Spezialkarte v. Preussen, x, 

 pars, ii, p. 565) described a very small shell from the German 

 Oligocene as Trivia scabriuscula, and it is evidently allied to the living 

 Cyprcea childreni. Gray, in having the anterior extremity carinately 

 winged beneath. Cossmann (1903) cited it as Pustularia. Koenen 

 did not observe that Gray (1827) had already given this name to a 

 recent species of Cyprcea, though afterwards always quoted as a 

 Trivia. Therefore I propose Cyprcea liliputana, m. nov. nom., for 

 Koenen's species, which is evidently a good one ; it seems that it 

 connects the ribbed C. childreni with the pustulated C. cicercula. 



Trivia subrostrata, Gray (1827). 

 Gray described two Cyprcea subrostrata : one (1824, Zool. Journ., 

 i, p. 369) is a fossil species of Cyprcea, the other (1827, op. eit., iii, 

 p. 363) is the recent Trivia from the West Indies. Obviously the 

 second must be renamed. The var. alba, Koberts (1885, p. 201, as 

 of Krebs, ubi ?), scarcely belongs to this species, as Roberts himself 

 says. Therefore, I propose for Trivia subrostrata, Gray (1827), 

 Trivia antiUarum, m. nov. nom. 



The following notes may be of use to workers on this group, but, 

 it is hoped, without giving rise to the thoughtless creation of many 

 new names which future examination might prove to be superfluous. 



GISORTIA. 



depressa. Sow. (1840) : Is described as a Cyprcea, but must not be 

 changed, for Cyprrj^a arabica var. depressa, Gray (1824), never 

 was considered a distinct species or good subspecies. 



CYPR^A. ^ 



attenuata. Johnson (1899) : Preoccupied by attenuata, Edwards 

 (1865). 



