COCHLOSTYLA OF MINDORO PROVINCE 523 



These bands are of irregular width, shape, and spacing. On the last 

 whorl they extend to the umbilical chink. The aperture is bluish 

 white, and the peristome is edged with chestnut-brown. This color 

 gradually fades inward until it merges with the white of the aperture 

 at their junction. The inner lip is edged with brown, which also 

 extends over the outer edge of the parietal callus. Nuclear whorls 2.9, 

 the first smooth and the last one showing the markings of the post- 

 nuclear whorls. The postnuclear whorls are very narrowly shouldered 

 at the summit and are crossed by irregularly developed and spaced, 

 retractively slanting, almost threadlike lines of growth, which are 

 quite closely approximated. These pass over the periphery and base 

 of the last whorl to the umbilical chink. In addition to this sculpture, 

 the whorls are marked by the usual microscopic crisscross lines, which 

 cut the lines of growth obliquely. The periphery of the last whorl is 

 somewhat inflated, well rounded. The periphery is marked by a 

 slender color line, which defines the border line between the spire and 

 base. Base well rounded. Aperture broadly oval ; outer Up expanded 

 and reflected; inner lip decidedly expanded at its insertion, also re- 

 flected, covering the umbilicus excepting a broad chink. The parietal 

 wall is covered by a moderately thick callus. 



The type (U.S.N.M. no. 313554) was collected by Mr. Quadras 

 and is labeled, "Contra Costa de Mindoro." It has 6.1 whorls and 

 measures: Length, 62 mm; greater diameter, 35.2 mm; lesser diameter, 

 26 mm. 



This race belongs to the elongate-ovate group and can be readily 

 differentiated from C. caniceps demesai by its less brilliant coloration 

 and smaller size and from C. caniceps maita by its smaller size. 



COCHLOSTYLA (CHBYSALLIS) CANICEPS CONICA Bartsch 



Plate 114, Figure 6 



1932. Cochlostyla (Chrysallis) caniceps conica Bartsch, Journ. Washington 

 Acad. Sci., vol. 22, p. 343. 



Shell rather large, very regularly elongate-conic. The first two 

 nuclear whorls flesh-color ; the last one pale buff, which is also the color 

 of the succeeding turn, but this rapidly shades into the chestnut color 

 of the last two whorls. In addition the whorls are marked by irregu- 

 larly placed axial bands of yellowish buff, which leave the brown 

 interspaces on the posterior half of the turns very conspicuous. 

 The basal half of the last whorl is almost unicolor, the darker parts 

 showing through only in spots and the last portion of the last turn is 

 also of this more or less solid color. The interior of the aperture is 

 bluish white, and the expanded peristome is pale purplish brown with 

 a narrow zone of dark purplish brown at the edge. This color also 

 marks the outer edge of the peripheral callus. Nuclear whorls 3, 



