CYPRJEA. 23 



ductis, marginatis, subdepressis, creberrime nigro-puucta- 

 tis ; basi pallida, planulata ; apertura postice recurva, ; den- 

 tibus acutiusculis. 



69. sanguinolenta, Ghnel., (f. 194, 195). — C. testa C.xan- 

 thodonti smiili, magis depressa, ad tercninos raagis obtusa, 

 basi lateribusque punctis purpureis notata; dentibus magis 

 rotundis, cum interstitiis aequalibus, labio postice columel- 

 lam superante. 



Note. — Xanthodon, picta, nigro-punctata, sanguinolenta. 

 Perhaps the most distinct of these is nigro-punctata, whose 

 flattened base, sharp-cut teeth, laterally-depressed ends, 

 latero-ventral specks, and terminal black patches enable it 

 to stand alone. Picta, in all its varieties, is known by its 

 peculiar marbled colouring, the deep, sharply-defined chest- 

 nut spots or hieroglyphic marking being concentrated in 

 two patches on the central zone of the back. This was a 

 very rare shell, unknown in good condition till a few years 

 since, when we procured a large number of brilliant varie- 

 ties from Cape de Verde Island. Xanthodon is distinguished 

 from sanguinolenta on one hand, and from zonata on the 

 other, by its small, depressed, distinctly-coloured teeth. 

 The specimen figured on the last Plate is abnormally large 

 and inflated, and, but for the teeth, resembles zonata. San- 

 guinolenta has a depressed form, obtuse at the ends, and 

 purple spots extending over nearly the whole base. 



70. Sowerbti, Kiener, (f. 79, 80). — C. testa oblongo-sub- 

 pyriformi, subumbilicata ; dorso casrulescente, obscurisshne 

 trifasciato, maculis inajquahbus castaneo-fuscis creberrime 

 picto ; extremitatibus productis, labii supra columellam ele- 

 vata; basi extremitatibusque fulvo-rubescentibus, ad latera 

 nigro-punctatis ; dentibus albidis, circa 18 et 22, rotundis, 

 brevibus. 



71. zonata, CJiemn., (f. 126, 127). — C. testa quam C. Soiv- 

 erbyi breviori; dorso elevato, subgibboso, zonis flammula- 

 tis picto ; terminis subplanulatis, basi planulata; dentibus 

 tenuioribus, interstitiis latioribus. 



72. nebulosa, Kiener, (f. 198, 199, 354, 355, 356, 514, 515). 

 — C. testa pyriformi, obtusa ; dorso griseo, fusco seu castaneo 

 nebulato, maculis castaneis irregularibus notato, basi lateri- 

 busque pallide roseis purpureo maculatis et nebulatis, callo 

 basali versus medium dorsi expanso ; extremitatibus callosis, 



