442 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



The specimen described and figured (U. S. N. M. no. 255790) is one 

 of three I collected at Tilig, Lubang Island. It has 5.6 whorls and 

 measures: Length, 42 mm; greater diameter, 26.5 mm; lesser diameter, 

 23.7 mm. 



A series of additional specimens furnishes the following data: 



I have selected this as typical cincinniformis because it satisfies 

 most nearly the figure in Martini-Chemnitz, which is the oldest figure. 

 This also depicts the dark nucleus. 



Reeve's figure represents a much broader race having a light 

 nucleus. I have specimens satisfying this but as yet no definite 

 locality connected with them. It will probably prove to be a distinct 

 race, requiring a name. Cochlostyla (Hypselostyla) cincinniformis 

 cincinniformis can be distinguished from the other forms by the dark 

 bands, exceedingly broad and almost black, and when specimens are 

 perfect the dark bands are beautifully mottled by hydrophanous 

 lines. In some of the specimens the nuclear turns and the first post- 

 nuclear turns have a pinkish purplish tinge. 



COCHLOSTYLA (HYPSELOSTYLA) CINCINNIFORMIS GUNTINGANA Bartsch 



Plate 101, Figure 3 



1932. Cochlostyla (Hypselostylus) cincinniformis guntingana Bartsch, Journ. 

 Washington Acad. Sci., vol. 22, p. 338. 



Shell elongate-ovate. Nuclear whorls white and sometimes brown. 

 Postnuclear whorls covered with a thin periostracum, which may be of 

 pale straw-color or tinged with brownish orange and which crosses the 

 dark bands in axial hydrophanous lines. The postnuclear whorls are 

 marked by three dark chocolate-brown zones: One at the summit, one 

 at the periphery, and the other surrounding the umbilical area, the 



