178 Proceedings of the Biological Society of Washington. 



distinct from Cochlostyla cinerosa cinerosa, although it may possibly turn 

 out to be simply a mutation of that form. We have not seen specimens of 

 this race, either. It also was collected by Dr. Traill in Palawan Passage, 

 near Borneo. Pfeiffer gives the following measurements: number of 

 whorls, 5; altitude, 36 mm.; diameter, 22mm. 



Cochlostyla cinerosa balabacensis, new subspecies. 

 This shell strongly suggests Cochlostyla palavanensis graellsi in color and 

 markings but it is much more slender and much smaller than that shell. 

 Six specimens give the following measurements : 



iType. 



Cochlostyla cinerosa higginsi, new subspecies. 

 This race lacks the strong axial striping, the last whorl being uniform 

 buff gray. The specimen was collected by Mr. C. M. Weber on Bessie 

 Island, and was donated by Mr. H. C. Higgins. The type, Cat. No. 

 336,046, U. S. N. M., yields the following measurements: number of 

 whorls, 5.6; altitude, 36.2 mm.; greater diameter, 23.4 mm.; lesser diameter, 

 20.9 mm. 



Cochlostyla cinerosa ulugana, new subspecies. 



A lot of specimens collected by the U. S. Bureau of Fisheries Steamer 

 Albatross on the Philippine Expedition at Ulugan Bay, on the central west 

 coast of Palawan, are of a pale chocolate color, slightly, obscurely, obliquely 

 banded; with slender darkish fenestrations near the summit, and showing a 

 dark peripheral band when denuded of epidermis. To this race the above 

 name may be applied. Ten specimens yield the following measurements : 



iType. 



