296 



PROCEEDINGS OF THE XATIOyAL MUSEUM. 



VOL. 37. 



This species occurs upon the island of Bantayan, where 893 speci- 

 mens were collected by Mr. R. C. McGregor of the Philippine Bureau 

 of Science. 



There is quite a bit of variation among the members of the lot 

 before us. In a few the dark band at the summit is indicated only 

 on the early whorls. In several the peripheral band persists at 

 maturity. 



The range of measurements can be best judged from the appended 

 table, the twenty-five specimens being taken from the lot at random. 



Named for the Honorable Dean C. Worcester. 



COCHLOSTYLA ANNULATA FUGENSIS, new subspecies. 

 Plate 29, figs. 2, 3, 8, 11, and 12. 



Shell similar to Coclilostyla annulata, but uniformly more broadly 

 conic and less elevated. In color this form presents all the phases 

 noted in annulata. In the })resent form the yellow phase pre- 

 dominates (there are only six of the white phase in the lot). The 

 umbilical area, too, is uniformly lighter in color thau in C. annulata. 



Specimens were collected by R. C. McGregor, of the Philippine 

 Bureau of Science, on Fuga Island, one of the Babuyan group north 

 of Luzon. C. annulata comes from northern Luzon. 



Twenty-four specimens of C. a. fugensis taken at random give the 

 following measurements: 



