Bartsch — Critical Remarks on Philippine Land Shells. 179 



Cochiostyla cinerosa tagbayugana, new subspecies. 



A lot of shells collected by the Bureau of Fisheries' Steamer Albatross in 

 Tagbayug Bay, on the south coast of southern Palawan, are decidedly 

 more ovoid than the last named race. Unfortunately all the specimens are 

 devoid of epidermis so that the color pattern can not be described. The 

 shells may or may not have a dark peripheral band. Fifteen specimens 

 yield the following measurements: 



iType. 



Cochiostyla cinerosa tidepolensis, new subspecies. 



A slender form with dark apex followed by buff turns and terminating 

 in the usual axial streaking of buff and brown on the last turn is before me 

 from Tidepole Island, which may be known under the above designation. 



The type, Cat. No. 310,083, U. S. N. M., has 5.3 whorls and measures: 

 altitude, 36.4 mm.; greater diameter, 18.9 mm.; lesser diameter, 5.3 mm. 



COCHLOSTYLA PALAVANENSIS Pfeiffer. 



This complex appears to have been greatly misunderstood. Most of the 

 authors seem to have confused Cochiostyla satyrus Broderip with it. The 

 specimens from southern Palawan ae;ree perfectly with Pfeiffer's diagnosis 

 and I shall therefore restrict Pfeiffer's name to the material from that 

 region. 



An accumulation of specimens from other parts of the island show that 

 we will have to recognize some additional races from the large island of 

 Palawan, but I shall refrain from that until more material will have come 

 to hand which will give us a better understanding of the distribution of the 

 various races than the present collection would permit. 



There are, however, a number of races which come from offlying islands 

 that demand recognition at the present time. These from the south north- 

 ward are: 



