Mr. Gray's Monograph on the Cy presides. 377 



rather large, extended like ridges partly over both the lips ; the 

 hinder ribs, especially of the inner lip, large and rather promi- 

 nent; columella plaited, front plaits largest; inside violet : axis 

 T 8 ^, diameter T 4 „ of an inch. 



This very distinct species bears much resemblance, at first sight, 

 to the last ; but it has not any appearance of bands, and the teeth 

 and furrows of the base are very different and more like those of 

 C. Asellus.' It is instantly distinguished from all the other 

 Cyprseae by the two black spots at each extremity. I have only 

 seen one specimen of it, which is in my collection ; nor have any 

 of my friends recollected seeing it in any other cabinet ; I am 

 therefore inclined to consider it as rare. 



40. Cyprwa Hirundo. — The Swallow Cowry. 



Testa, oblongo-ovata, albido-caerulescente, fasciis inaequalibus 

 tribus fusco-nigris ornata, fulvo fusco inaequaliter punctata; basi 

 marginibusque albis, fusco-punctatis ; extremitatibus fusco-nigro 

 bimaculatis ; subtus planulata, aequaliter semi-sulcata. 



Cypraea Hirundo. Lin. Sys. Nat. 1178. (1). Born. Mus. 184. 

 Schroet. Einl,j. 116. Gmelin 3411. Schreiber's Conch, j. 116. 

 Lamarck Ann. Mus. xvi. 95. Hist. vii. 393. Dillwyn R.S. 455. 



Icon. Lister Conch, t. 674. f. 20 ! Pet. Gaz. t. 30. f. 3 ! (1). 

 Knorr. iv. t. 25. f. 4. Martini, j. t. 28. f. 282. Born. Mus. 

 t. 8. f. 1 1 ! " Encyc. Method, t. 356. f. 6. f. 15." Lamarck. 



#. formosa. Testa, obscure fasciata, fulvo subpunctata., macula 

 dorsali rufescente lata signata; extremitatibus fusco-maculatis. 



Cypraea Hirundo, Var. C. Lamarck. 1. c. 



2. decorticata. Testa, albida, zonis tribus rufis inequalibus ; 

 extremitatibus bimaculatis. 



Cypraea Ursellus. Gmelin 3411. Schreibe^s Conch, j. 60. 

 Lamarck. Ann. Mus. xvi. 98. Hist. vii. 395. Dillwyn, R. S. 455. 



Icon. Rumphius t. 39. f. 0. Gaidtier t. 15. f. L. Martini 

 j. t. 24 f. 241. bad. " Encyc. Method, t. 356. f. 6." ? Lamarck. 



Inhabits Indian Ocean. The Maldives, Lister. Antilles, 

 Muller. Mus. Brit. J. Sowerby, Nost. 6. Mus. Dom. Mawe. 



Shell oblong-ovate, blueish white, with three irregular blueish- 

 bjack bands, and ornamented with minute fulvous brown scat- 



