Mr. Gray's Monograph on the C^prceidce. 495 



a little smaller and closer; columella smooth; inside purplish 

 white. Axis i^) diameter y*^ of an inch. 



Shell when young with three pale blue bands like the former, 

 and when worn, purplish, with a white margin. 



63. Cyprcea caput Serpentis. — The Snakes-head Cowry. 



Testa OTata, scutellata, albida, dorso fusco-reticulato ; margi- 

 nibus incrassatis, depressis, lavibus, fusco-nigricantibus ; extremi- 

 tatibus albo-maculatis ; subtus planulatis ; dentibus albidis. 



Cypraea caput serpentis. Lin. S^s. Nat. 1175 ! Martini, j. 

 387. Born. Mus. 179. Sckroeter Einl. 107. Gmelin 3406. 

 Schreiber^s Conch, j. 62. Lamarck Ann. Mus. xvi. 90. Jlist. 

 Tii. 385. Dillwyn R. S. 446. 



Icon. Bonanni Rec. iii. f. 258. Kirch, iii. f. 257. Lister. 

 Conch, t. 702, f. 50 ! t. 704, f. 52 ! Rumphius Amb. t 38. f. F. 

 Pet. Amb. t. 16. {.7. Gaz. t. ^6. f. 9. Gaullier t. 15. f. O. 

 Adanson Senegal, t. 5. f. G. Knorr, iv. t. 9, f. 3. Favanne t. 

 30. f. F. 1. Martini 1. 1.33. 316. E7ici/c. Method, t. 354. f.4! 



2. Incompleta. Testa ovato-oblonga, albida, fusco-reticulata ; 

 marginibus subincrassatis, pallidis. 



Cyprasa reticulum. Gmelin 3407. 



Cypraea n. 11. Schroeter Einl.j, 136. 



Icon. Lister. Conch, t. 701. f. 49 ! Martini, j. t. 26. f. 259. 



3. Decorticata. Testa albido-caerulea ; marginibus fuscis ; ex« 

 tremitatibus aibido-maculatis. 



Inhabits Indian Seas, Mauritius, Lister. Isle of Nassatella, 

 Rumphius. Borneo, Petiver. Senegal, Adanson. Otaheite, 

 SoUtnder. Isle of France, Lamarck. 



Shell ovate, shield shaped, whitish, the back covered with 

 chesnut brown reticulations, leaving irregularly sized round white 

 spots; the spire pronsinent, covered; the margin thickened, pro- 

 duced, depressed, smooth, of a fine blackish brown colour, with a 

 white squarish spot at each extremity just over the slit ; the base 

 flattish, dark brown, near the margin, paler and shelving to- 

 wards the mouth ; tlie mouth rather narrow ; tcc'lli nearly eqiml, 

 Kmallisli, close, witli the interspaces brown, scarcely extcndoil uvir 



2i. 2 



