SCHtLDER : ON CYPB^A Al^D TBIVIA, 121 



C. STAPHYL^A, Linn., var. limacina, Lam. (1810). 

 D. 513. — Is the shell described by Lamarck as 0. limacina. 

 I consider it a subspecies of C. staphylcea, though Troschel found 

 both quite distinct as regards their radulae, but he examined 

 only one specimen of limacina, which may have been abnormal. 



C. STAPHYLiEA, Linn., var. atrata, G-ray (1825). 

 D. 513. — Though this variety having black extremities is not 

 mentioned in Hidalgo's monograph, it cannot belong to any other 

 species ; specimens with somewhat darker extremities do exist 

 (cf. Sowerby, 1870, Thes. Conch., Cyprce%, fig. 228). 



C. ciCERCULA, Linn., var. timorensis, G-ray (1825). 



D. 515. — It is no variety, but only a young shell of G. cicercula ; 

 Gray also put a " 1 " before its name. 



The following species now belong to the genus Trivia : — 



C. scABRiuscuLA, Gray, var. minor, Gray (1827). 



E. 364. — Described as ovate-oblong, subrostrate, and only 

 5 X 2-5 mm. in size. I cannot place this shell ; was it perhaps a 

 T. insecta, Migh. ? 



C. EUROP^A, Mont., var. immaculata, Gray (1827). 

 E. 366. — " Testa immaculata alba." It may be considered as 

 identical with the typical T. arctica, Pult., as the added synonym 

 arctica, Mont., proves. Considering only the description and the 

 other synonym, pediculus (anglica), Linnaeus, one could take it as 

 identical with the pure white variety described by Dautzenberg 

 and Fischer (1912, Res. camp, scient. Albert de Monaco, xxxvii, 

 p. 168) as var. alba (as if by Hidalgo). 



C. QUADRiPUNCTATA, Gray, var. immaculata, Gray (1827). 

 E. 368. — It is described by Hidalgo (1907, Mon. gen. Cyprcea, 

 p. 496) as the nameless var. 3 of T. quadripunctata. 



C. PEDicuLus, Linn., var. suppusa. Gray (1827), 



E. 370. — Identical with Gyprcea (Trivia) suffusa. Sow. (1832, 

 1837) ; Gray and not Sowerby must in future be credited as author 

 of this good species. 



C. AVELLANA, Sow., var. MINOR, Gray (1828). 



F. 568.— It may, I think, be a variety of T. affinis, Duj. (1837), 

 for its ribs are close and slender ; its length is 15 mm. The word 

 minor cannot rank as the specific name, for its identity with T. 

 affinis is very problematical. 



C. CARNEA, Gmel., var. oblonua, Gray (1828). 

 F. 569.— A very slight variety of Trivia costata, Gmel. ; its shape 

 is more oblong than globular. 



VOL. XV. — DECEMBER, 1922. 9 



