100 



6'J. Sc. ACicuLiNA. (pi. xxxiv. f. 100. Hinds, ZooL 

 Proc. 1S43. 



T, parva, elongata, acuminata, imperforata, tenui, laevi ; 

 anfractibus contiguis, prope suturam elevatis ; varicibus 

 decern, inequalibus ; apertura sub-quadrata ; colore, inter 

 varices, obscure fulvo. America, Mr. Hinds 



68. Sc. ALBOLiNEATA. (pi. XXXIII. f. 52.) Soiv. Jun. 



T. aciculinse similima, sed magis ventricosa, costis magis 

 numerosis, continuis ; colore inter varices fulvo. 



This species is shorter and thicker than Sc. aciculina, with 

 more numerous and less angulated varices. From the beau- 

 tiful fawn colour contrasting with the whiteness of the ribs, it 

 resembles Sc. Philippinarum, but the whorls are united. 



69. Sc. POLiTA. (pi. xxxiv. f. 99.) Sow. Jun. Zool. Pooc. 

 1844. 



T. tenui, elongata, Isevi, imperforata; anfractibus nume- 

 rosis, vix prominentibus ; varicibus sub-numerosis, tenuis, 

 in medis anfractuum obsoletis ; colore pallide griseo. 



The whorls are numerous, and not very prominent. The 

 varices appear as if worn away in the centre of the whorls. 

 Taken by Mr. Cuming at Xipixappi, West Columbia, in 

 sandy mud, ten fathoms deep. 



70. Sc. TuBTONis. (pi. xxxiv. f. 106, 107, 108. var. 

 pi. XXXIV. f. 89.) Sc. planicostata, Bivon. 



T. elongata, imperforata, Isevi ; anfractibus numerosis, vix 

 prominentibus, contiguis; varicibus decumbentibus, inequal- 

 ibus, ad suturam expansis, elevatis ; apertura ovali, labio 

 interno crasso ; colore maculis et fasciis variegato. 



This species resembles in general appearance, and in the 

 disposition of the colours, Sc. communis, but the whorls are 

 united and more numerous; the varices are flat, and some of 

 them exceedingly broad : varieties, fig. 106, 107, are from 

 British specimens, fig. 108, from Sicily, fig. 80, from Puerto 

 Galero, Isl. Mindinao. 



71. Sc. Tbevelyana. (pi. xxxv. f. 129.) Leach. 



T. pyramidali, acuminata, imperforata ; anfractibus con- 

 tiguis, rotundatis ; varicibus decumbentibus, inequalibus, ad 

 suturam expansis, in dentem acutum elevatis ; colore pallide 

 fulvo. 



Smaller, and more ventricose in proportion to its length 

 than the preceding, with the varices narrower, rather more 



