Mr. Gray's Monograph on the Cyprceidas. 385 



concave the whole length ; teeth of the outer lip rather large, dis- 

 tant, slightly extended over the lip, inside purplish-white. Axis 

 •f§, diameter ^ of an inch. 



This shell varies its shape, by being sometimes ovate and gibbous 

 at the back. 



The third variety may perhaps be a distinct species, as I have 

 seen several of them, which all agree in being longer, and nar- 

 rower, with the base flat, and white, and in the spots being more 

 distinct. In the teeth, however, and general disposition, of the 

 colouring, they agree with this species. 



49. Cyprcea errones. The Doubtful Cowry. 



Testa ovato-oblonga, subumbilicata, albido-caerulescente, sub- 

 fascial, punctis viridi-fulvis confertis nebulata ; lateribus, basi- 

 que flavescentibus ; extremitatibus interdum bimaculatis. 



a. Testa ovato-oblonga, dorsa macula fusca. notato, basi albida, 

 extremitatibus immaculatis. 



Cypraea errones. Lin. Sys. Nat. 1178. Born. Mus. 185. 

 Gmelin 3411. " Solander's Mss." Dillwyn, R. S. 456. 



Cypraea erronea. Turt. Sys. Nat. iv. 340. 



Cypraea virescens. Humphreys Calonne's catalogue. 



Cypraea ferruginosa. Dr. Combes' Mss. 



Cypraea olivacea, var. b. Lamarck, Hist. vii. 392. 



Icon. Pet. Gaz.t. 97. f.21. 



jS. Ovata. Testa ovatft, dorso nebulata, basi lateribusque fla- 

 vis, extremitatibus immaculatis. 



Cypraea Ovum. Gmelin, 3412. (1) Schreiber's Conch. 69. 



Cypraea olivacea. Lamarck Ann. Mus. xvi. 95. Hist. vii. 392. 



Cypraea Spurca. Born. 190. (2) 



Cypraea oblonga. Gmelin. (2) 



Icon. Martini, j. t. 27. f. 278, 279. (1) Born. Mus. t. 8 .f. 

 14. (2.) 



y. Bimaculata. Testa, ovato-oblonga, dorso nebulato, basi late- 

 ribusque flavis, extremitate anteriori nigro bimaculata. 



Icon. 



2. Decorticala. Testa purpurea, basi albida planulata. 



Iuhabits Indian Ocean. Humphreys. «./s. y. Mus. Nost. 



Vol. I. 2 c 



