338 



striped on the later whorls. The base of the body whorl is a solid band of the 

 same color. This solid band extends up to just a little below the periphery. 

 The color in between the stripes is ivory white. 



Sculpture consisting of very fine threadlike spiral lines crossed by very 

 faint axial striae. A series of about five very well defined riblets begins a 

 short distance below the periphery and extends to the suture. These riblets 

 have their origin just beyond the embryonic whorl and extend as far as the 

 peristome. Body whorl slightly descending the last one quarter of the whorl 

 before the aperture. Whorls 5%, convex, regularly increasing. Peristome 

 heavy, nearly holostomatous, outer rim duplex, minutely laminated, reflected. 

 Inner lip thinly calloused on body whorl. 



Alt. 



Diam. 



Ap. Length 



Ap. Width 





16 



14 



6.5 



6.5 mm. 



Holotype, M. C. Z. no. 47221 



16.5 



14 



6 



6 



Paratype, M. C. Z. no. 79175 



15.5 



14.5 



6.5 



6 





16 



15 



6.5 



6.5 



a a 11 (I 



16 



15 



7 



6 





Holotype.— M. C. Z. no. 47221. Paratypes.— M. C. Z. no. 79175. Pedro 

 de Mesa, collector, Lubang, P. I. Received from Pedro de Mesa, June 10, 

 1929. 



Remarks. — This form is smaller than the type species. How- 

 ever, it resembles it in color and shape, though the aperture is 

 inclined at a greater angle. C. reevei is reported from Tablas, 

 Mindoro, and Lubang. An examination of specimens of C. 

 reevei from Lubang reveals some which apparently intergrade 

 with this new variety. 



19. Helicina ignava, sp. nov. 

 Text fig. 1. 



Description. — Shell, depressed conic, imperforate, rather thick, spire acute. 

 Embryonic whorl citron yellow, and succeeding whorls of same color. 

 Base of shell slightly lighter in tone. 



Fig. 1. Helicina ignava. 



