MELANIID.E. 237 



subvar. appressa, nov. 



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



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

 nevilli. 



30. Melania [Striatella] nicobarica. 

 Melanin nicobarica [ Morch~\, Reeve, Con. Icon. 1859, Nicobars. 



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



F. Stoliczka. 

 22 S. Andamans; 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. cochlidium; 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 Koepstorff, 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 type 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. 32J, diam. 9 mil. 



var. [ ? dist. species]. 

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



