230 MELANIIDJE. 



vnr. pseudaculeus, uov. 



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



This is certainly not the M. aculeus of Lea, in Brot or 

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

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

 a variety. The sutures 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 J, diam. 12} mil. 



12. Melania zelebori. 



Melan'w zelebori, Brot, Mat. 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 Katcball, Great Nicobar, and Camorta ; coll. F. A. de Roepstorff, Esq^ 

 Long. 53, diam. 16 mil. ; anf r. 4. 



var. nana, nov. 



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



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

 diam. 10J mil. 



var. solid iuscula, nov. 

 6 Audamans j coll. F. A. de Roepstorff, Esq. 



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

 37, diam. 11 J 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. S. 1850, Philippines. 

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



