84 



ovali-subquadrata ; labio interne antice extenso : colore, 

 inter varices albas, fulvo vel castaneo. 



More narrow and pyramidal than Sc. pretiosa, with the 

 whorls closer, the ribs more numerous, with a small tooth- 

 like process at the upper angle of each. 



Catanuan, Phihppines. 



3. Sc. ALATA. (pi. xxxii. f. 10, 11.) Sow. Jun., var. f. 

 14. Isl. Nicobar. Zool. Proc. 1844. 



T. sub-ventricosa, Isevi, umbilicata ; anfractibus separatis ; 

 varicibus 8, latis, distantibus, laminatis, late extantibus, 

 superne angulatis : apertura ovali, margine sub-quadrata : 

 colore, inter varices, in medio anfractuum, fulvo vel castaneo 

 nigricante. 



Brought by Mr. Cuming from Catanuan, Isl. Luzon, Philip- 

 pines. See observations on Sc. replicata. 



4. Sc. FAsciATA. (pi. xxxii, f. 12, 13.) Sow. Jun.f Zool 

 Proc, 1844. 



T. Sc. alatse similima, sed varicibus angustioribus, angulo 

 niagis elevato, acuto : apertura minori, margine acuminato. 



Also from Catanuan, Isl. Luzon, Phihppines, by Mr. Cum- 

 ing, see Sc. replicata. 



5. Sc. MARMORATA. (pi. xxxii. f. 9.) Sow. Jun,^ Zool 

 Proc, 1844. 



T. Sc. alatse similima, sed varicibus obtuse angulatis : 

 colore, inter varices, fusco marmorato. 



From India, Mr. Cuming's collection, see Sc. replicata. 



6. Sc. REPLICATA. (pi. xxxii. f. 23, 24.) Sow, Jun., 

 Zool Proc, 1844. 



T. sub ventricosa, brevi, leevi ; anfractibus separatis : vari- 

 cibus 8, distantibus, laminatis, valide replicatis, superne ele- 

 vatim angulatis, ad suturam junctis : colore albo. 



This species, and the three preceding, have an affinity with 

 each other ; each has the whorls disunited, with broad lami- 

 nated, angulated, distant varices, which are united at the 

 suture ; those of Sc. alata, are flat and broad, the angle of 

 each varix, is at some distance from the suture ; those of Sc. 

 fasciata, have the angle much sharper, and higher in the 

 whorl, and the shell is, altogether, more pyramidal : a similar 

 form is observed in Sc. marmorata ; but in this, the angle of 

 the varices is very obtuse, and as low as that of alata, the 

 varices are also much narrower, and shghtly reflected ; the 

 shell is beautifully marbled with brown between the varices. 



