MELANIID^. 237 



subvar. appressa, nov. 

 8 Andamans; coll. Dr. J. Anderson, &c. 



The last two whorls are contracted much as in typical M. 



nevilli. 



30. Melania [Striatella] nicobarica. 



Melania nicobarica [itioVcA], Reeve, Con. Icon. 1859, Nicobars. 



20 Katchall, &c., Nicobars; coll. F. A. de Roepstorff, Esq., and Dr. 



F. Stoliczka. 

 22 S. Aiidainaus; coll. F. A. de Roepstorff, Esq., and Dr. F. Stoliczka. 



subvar. canaliculata, nov. 



The infra-sutural shelf is sometimes as sharply defined as in 

 Reeve's figure of M. coc/iZifii'wm; one specimen, indeed, has it 

 developed on the three last whorls. 



10 Nicobars ; coll. F. A. de Roepstorff, Esq. 

 13 S. Andaman ; coll. F. A. de KoepstorfE, Esq. 



subvar. gigantea. 



Anfr. 4; long. 43, diam. 17 mil. 



1 Camorta; coll. F. A. de Roepstorff, Esq. 



10 S. Andaman; coll. F. A. de Roepstorff, Esq. 



var. fusiformis, nov. 



2 S. Andaman ; coll. F. A. de Roepstorff, Esq. 



Well distinguished by its produced and f usiform'shape ; the 

 whorls increase regularly and are more convex than those of 

 the tj-pe form, in which the upper whorls are abruptly and con- 

 tractedly attenuate, the lower ones increasing rapidly in size, 

 especially the last, which is always very tumid. In var. fusi- 

 formis, on the contrary, it is only a trifle more swollen than 

 the preceding one. More solid and of brighter coloration ; sculp- 

 ture rather less distinct. 



Anfr. 9 ; long. 32f , diam. 9 mil. 

 var. [ ? dist. species]. 

 6 "Nicobars" [?]; coll. Dr. F. Stoliczka. 



