88 



angle on each varix near the suture. 



Also from the West Indies, 



20. Sc. FRAGiLis. (pi. xxxiii. f. 64. 65, 66.) Hartley, 

 Book of Species. 



T. pyramidali, acuminata, laevi; anfractibus vix contiguis; 

 varicibus numeroris, tenuis, laminatis, ad suturam paululum 

 dilatatus et junctis ; apertura ovali : colore albo. 



A common West Indian shell, which has been confounded 

 with Sc. Clathrus and others. The ribs are widened at the 

 suture, where they are joined with those of the whorl above 

 them, so as to form a continuous line obliquely running up the 

 sj^ire. The colour is generally white, but figure 64 is taken 

 from a dull-grey specimen in Mr. Cuming's Collection from 

 St. Vincents. 



21. Sc. glabrata. (pi. xxxiv. f. 101,) Hinds. Zool. 

 Proc. 1843. 



T. pyramidali, acuminata, glabra; anfractibus vix contiguis; 

 varicibus numerosis, tenuis, laminatis, ad suturam junctis, 

 paululum dilatatis, reflexis, et in dentem acutum productis, 

 colore palide fulvo, inter varices regulariter marmorato. 



Like the last, but the ribs rather fewer in number and 

 slightly reflected and tooth-shaped at the suture. The younger 

 specimens are beautifully marbled with pale fawn between 

 the varices. Brought by Mr. Hinds from Maccassar and 

 Mallacca. 



22. Sc. georgettina. (pi. xxxiv. f. 77») Keiner. 



T. Sub-elongata, leevi; anfractibus vix contiguis; obliquis ; 

 varicibus numerosis, sub-rotundatis, simplicibus, ad suturam 

 junctis; colore albo. 



This shell, which was purchased by Mr. Cuming at Paris, 

 appears on examination, to correspond with the figure and 

 description of Keiner. The ribs are more numerous and 

 rounded than in Sc. communiformis and more simple at 

 the suture. 



23. Sc. principalis, (pi. xxxiv. f. 75.) Pallas, Sc. cos- 

 tulata, Keiner. 



T pyramidali, sub-ventricosa, tenui, laevi; anfractibus vix 

 contiguis; varicibus numerosis, laminatis, ad suturam dilatatis, 

 irregulariter junctis; apertura magna; labio interno spiraliter 

 incrassato, colore albo. 



The ribs are much more numerous, the shell more 

 ventricose, and the whorls more rapidy increasing in size than 



