230 MELANIID^. 



var. pseudaculeus, nov. 



1 lies Marianes ; ex c. A. Morelet, Esq. [labelled " M. aculens]." 



This is certainly rot the M. aculeus of Lea, in Brot or 

 Hanley, Con. Misc., being much nearer the latter's fig. 32, 

 1. c, " M.Jimbriata, Thorpe, ms.," of which, indeed, it might be 

 a variety. The sutnres are excavate, slightly swollen beneath, 

 as in var. aspirans ; the spire is rather less lanceolately produced 

 than in any of the preceding forms ; though adult, it is scarcely 

 decollate ; coloration uniform brown ; spiral striation very 

 irregular on the lower whorls. 



Anfr. 11 to 12 ; long. 51^, diam. 12| mil. 



12. Melania zelebori. 



Melaniii zelebori, Brot, 3Iat. Melaniens, III, 1872, Nicolars, long. 37, diam. 

 8 mil. 



The young sometimes show obscure, short brown dashes [or 

 streaks] below the suture and more or less throughout the last 

 ■whorl. 



10 Katchall, Great Nicobar, and Camorta ; coll. F. A. de Roepstorff, Esq^ 

 Long. 63, diam. 16 mil. ; anfr. 4. 



var. nana, nov. 



2 Great Nicobar ; coll. F. A. de Roepstorff, Esq. 



Strongly decollate, only 3 to 4 whorls remaining — long. 29|, 

 diam. 10| mil, 



var. SOlidiUSCUla, nov. 

 6 Andamans ; coll. F. A. de Roepstorff, Esq. 



A very distinct variety, slightly decollate, 6 whorls — long. 

 37, diam. 11| mil.; constantly distinguished from all the preced- 

 ing by its greater solidity and by the less convex whorls, espe- 

 cially noticeable in the last one. 



13. Melania blatta. 



Melania blatta, Lea, P. Zool, 8. 1850, Philippines. 

 1 Philippines ? ; coll. Baron F, von Ricbtliofen. 



