COCHLOSTYLA OF MINDORO PROVINCE 



413 



This race varies somewhat in color pattern. All of them have a dark 

 band near the summit and the columellar dark area. In some of the 

 others the peripheral zone varies considerably in width and in some 

 specimens extends over the posterior half of the turn. 



COCHLOSTYLA (COCHLODRYAS) FLORIDA FUSCOLABIATA Mollendorff, Kobelt, and Winter 



Plate 99, Figure 10 



1851. Helix floridus Reeve, Conchologia iconica, pi. 11, fig. 43c. 



1911. Cochlostyla florida fuscolabiata Mollendorff, Kobelt, and Winter, 



Semper's Reisen im Archipel der Philippinen, vol. 10, pp. 248-249 (in 



part), pi. 51, fig. 3. 

 1932. Cochlostyla (Cochlodryas) florida fuscolabiata Bartsch, Journ. Washington 



Acad. Sci., vol. 22, p. 336. 



Mollendorff, Kobelt, and Winter, as cited above, described a dark 

 olivaceous-brown shell under the above designation. I am not 

 certain as to whether this is merely a color form that may occur in 

 any of the races or whether it is a distinct subspecies. I have but a 

 single specimen before me collected by Quadras (U.S.N.M. no. 313609) 

 that is referable here. This has the light nuclear turns. The post- 

 nuclear whorls begin by having the anterior half pale brown, the 

 brown gradually becoming intensified in color. There is a subsummit 

 brown band, which becomes feeble on the last whorl, and there is also 

 a dark columellar area. The space between is olivaceous-brown 

 marked by axial streaks of more intense pigmentation, giving the shell 

 an almost varicid appearance. The light zone at the summit is 

 unusually broad in this specimen. The interior of the aperture has 

 also the merest indication of a brownish wash over the white, and the 

 outer edge of the peristome is tinged with brown. 



The specimen has 5.1 whorls and measures: Length, 35.6 mm; 

 greater diameter, 30.3 mm; lesser diameter, 28.3 mm. It bears 

 Quadras' collector's no. 2109 and is labeled "Mindoro" without 

 specific locality. 



