SCHILDER : ON CYPRMA AND TRIVIA: 115 



C. EXANTHEMA, Linn., var. angustata, Gray (1824). 

 B. 139. — A slight variety of C. zebra, Linn. ( = exanthema, Linn.), 

 being a little more cylindrical, the white spots not so large as in 

 typical specimens, but also ocellated. It seems to be an inter- 

 mediate variety connecting zehra with its subsp. cervinetta, Kien. 

 No wider aperture being mentioned, it must be placed with the 

 typical zehra and not with cervinetta. I have had no opportunity 

 of seeing the figure in Favanne's " Conchyliologie " (tab. 29, fig. B, 1), 

 cited by Gray. 



C. ARGUS, Linn., var. ventricosa, G-ray (1824). . 

 B. 141. — This variety is described by Hidalgo (1907, Mon. gen. 

 Gyprcea, p. 270) as argus var. 1. The slight difference in colour can 

 be neglected. 



C. ISABELLA, Linn., var. fulva. Gray (1824). 

 B. 142. — This variety is not identical with var. fiilva, Eous 

 (1905, The Nautilus, xix, p. 77), but being fulvous as well as 

 pellucid, it connects fulva, Rous, with var. limpida, Melv. (1888, 

 Mem. Proc. Manchester L. Ph. Soc, (4) i, p. 231). 



C. LURiDA, Linn., var. monstrosa. Gray (1828). 

 G. 72. — Not a variety, ?jut a monstrosity of C. lurida and not of 

 C. pulchra. Gray (see Hidalgo, 1906, Mon. gen. Gyprcea, p. 176) ; it 

 is a synonym of hunthii, Audouin (1827, in Savigny, Descr. Egypte, 

 xxii, p. 190), which was described as a species, but unknown to Gray, 

 in 1828. Both names were established on the same specimen of 

 lurida, figured by Savigny ten years before (1817, Mem. Coq. Egypte, 

 tab. 6, fig. 27). 



C. ciNEREA, Gmel., var. fulva, Gray (1824). 

 B. 145. — A slight colour variety, the interstices between the 

 teeth of which are colourless, as it was in the shell described by 

 Gmelin. Hidalgo's cinerea, which has reddish interstices between 

 the teeth, must be considered as a variety, though most adult shells 

 belong to it. Gray's cinerea, s. str., which has the margins sprinkled 

 with black, also belongs to a common variety, while his y ax. fulva, 

 having white margins, was perhaps not quite full grown. 



C. CINEREA, Gmel., var. subfossilis, Gray (1828). 

 G. 72. — No description is given, only the manuscript-i^ame 

 G. ehurnea, Konig, is added as a synonym. This shell must be left 

 as dubious, but it scarcely belongs to cinerea, which is found in fossil 

 condition only in Costa Rica (Roberts, 1885, in Tryon, Man. of 

 Conch., vii, p. 166) and in the Bahama Islands (Dall, 1905, Fossils of 

 the Bahama IsL, p. 26). Konig's shell was found, I suppose, in 

 Europe, probably in the British Tertiary, and might have been a 

 (young ?) Bernaya, sp. 



