100 COCHLOSTYLA-CHLOR.EA. 



tional. C. pelewana may prove to belong elsewhere than in 

 ( '/tlorcea. 



( '. OMELINIANA Pfeiffer. PL 21, figs. 29, 30. 



Im perforate, globose-depressed, rather solid, irregularly rugosely 

 malleated, carinated, shining, pale green, girdled with white at the 

 suture and below the carina; spire subelevated, apex obtuse, whitish; 

 whorls 4-j, scarcely convex, gradually increasing, the last not descend- 

 infj; base a little flattened ; aperture angular-lunar; peristome sub- 

 thickened, the upper margin narrowly expanded, arched forward; 

 basal margin reflexed ; columella sloping, dilated, white calloused. 



Alt. 13, greater diam. 23, lesser 20 mill. (Pfr.) 



Luzon, Philippines. 



H. gmelimana PFR., P. Z. S. 1845, p. 43; Monogr. i, p. 300; 

 Conchyl. Cab., t. 150, f. 10, 11. REEVE, Conch. Icon., f. 138. 



A species known only by the description of Pfeiffer and the figures 

 of Pfeiffer and Reeve. I have italicized the more important portions 

 of the diagnosis. Reeve remarks : A delicate and very characteristic 

 species, of which the surface is irregularly indented throughout. It 

 is of a peculiar light sea-green color encircled by a narrow opaque- 

 white band of epidermis beneath the spiral keel. 



(2) GROUP OF C. DRYOPE. 



Depressed, rather thin, greenish or bluish, usually banded ; acutely 

 carinated ; last whorl strongly deftexed in front ; apex and columella 

 usually dark. 



These shells are separated from the C. regince group of section 

 Corasia by the excessively fine spiral striation of the surface. The 

 spiral lines are much coarser or more separated in Corasia. 



C. DRYOPE Broderip. PL 22, figs. 1, 2, 3, 4, 5, 6, 7. 



I in perforate, much depressed, acutely carinated, rather thin ; light 

 bluish-green, the apical ivhorl purple-black, and usually there is a dark 

 bund above the carina and a dark columeUar spot; the peristome 

 either white or brown. Upper and lower surface about equally con- 

 vex ; under a lens the entire surface is seen to be very finely and 

 very closely, spirally striated. Whorls 4] , flattened, the last deeply 

 in front; aperture subhorizontal, lanceolate-oval; per- 



