692 MUREX. 



Inhabits the Asiatic Ocean. Linrimis. Coasts of Amboyna. 

 Rumphius. Borneo and Bencoolen. Petiver. Tranquebar. 

 Regenfuss. China. Humphreys. 



Shell about two inches and a quarter long, and one inch and a 

 quarter broad, of a whitish, greyish, or pale brown colour 

 mottled with darker shades, and the transverse ribs are often 

 blackish ; the body-whirl has three transverse ribs, of which 

 the uppermost is armed throughout with short strong spines, 

 and the others are less regularly so, except at their intersec- 

 tions with the varices. 



►spiNOSus, 22. Shell with two opposite varices, 

 and remote transverse spinous belts ; whirls 

 flattened, and the spines on the varices very 

 long ; aperture ovate. 



Murex Rana, Var. Linnaus S^/st. Nat. p. 1216. BortiMus. 



p. 296. ScJiroeter EiriL i. p. 487. Gmelin, p. 3331. 



Schreibers Conch, i. p. 198. 

 Buccinum bufonium muricatum. Martini, iv.t^. 110. t. 133. 



f. 1274 to 1276. 

 Kana aculeata. Humphreys, Callone's Cat. p. S3. No. 615. 

 Lister Conch, t. 949. f. 44. Seba, iii. t. 60. f. 19. Knorr, 



iii. t. 7. f. 5. Favanne, t. 32. f. B 2. 

 Inhabits the coasts of Tranquebar. LinncBus. 

 This shell differs from M. Rana, in having the whirls much 

 flatter and less granulated, and in having the spines on the va- 

 rices very long ; these characters are so constant, and give 

 the shell such an entirely different appearance, that 1 have 

 followed Martini and Humphreys in arranging it as a separate 

 species. I have not Perry's Conchology to refer to, but if I 

 recollect right, it is his Biplex spinosus. 



CRASSUs. 23. Shell with two opposite very thick 

 varices, and remote transverse obsolete belts, 

 and granulated striae ; whirls rather flattened; 

 aperture ovate, and the outer lip very thick. 



Murex Rana, Var. Martini, iv. p. 106. t. 133. f. 1272 and 

 1273. 



Rana crassa. Humphreys, Callone's Cat. p. "3o. No. 614. 



Favanne, t. 32. f. B 4. 

 Inhabits the coasts of Madagascar. Humphreys. 

 Shell about two inches long, and an inch and a quarter broad, 



and is much thicker than either of the preceding species ; 



