484 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



"If any importance is to be attached to the character and pattern 

 of the epidermis of these shells, there is certainly enough to distinguish 

 this from the B. Mindoroensis. The epidermis is of a soft, very slight 

 texture, of a uniform reddish brown tint in which light streaks descend 

 here and there from the sutures in very zigzag course, somewhat as in 

 B. fulgetrum but fainter; and, beside this, the shell is of a more acumi- 

 nated growth, whilst the last whorl is larger and more effused." 



This differs from the two races I have described by having the 

 columella livid red; in the other two it is white edged with purplish 

 brown. 



Puerto Galera is in the northeastern part of the island. The other 

 two came from the southeast and southwest, respectively. 



COCHLOSTYLA (CHRYSALLIS) ELECTRICA MANGARINA Bartsch 



Plate 109, Figures 1, 2 



1892. Cochlostyla electrica Pilsbry, Man. Conch., ser. 2, vol. 8, pp. 51, 53-54 



(in part), pi. 15, fig. 3. 

 1901. Cochlostyla electrica Hidalgo, Obras malacologicas, p. 553; in part. 

 1932. Cochlostyla (Chrysallis) electrica mangarina Bartsch, Journ. Washington 



Acad. Aci., vol. 22, p. 340. 



Shell ovate. The first nuclear whorl is flesh-color; the rest have the 

 posterior half brown . The postnuclear whorls are of bright chestnut- 

 brown ground color, covered with a thin pale-gray periostracum, 

 beneath which more or less continuous zigzag, retractively slanting, 

 axial, flesh-colored fulgurations pass over the whorls. These are 

 strongest developed near the summit, where they appear almost as 

 false teeth. There is a smooth peripheral zone of brown, apparently 

 devoid of periostracum. The aperture is bluish white and the expanded 

 peristome is edged with pale chocolate-brown, gradually fading toward 

 the interior of the shell. This zone of chestnut-brown also extends 

 over the edge of the inner lip and the edge of the parietal callus, thus 

 completely bounding the peritreme. Nuclear whorls 2.4, the first 

 two well rounded and smooth, the last half of the last turn showing the 

 beginning of the postnuclear sculpture. The postnuclear whorls are 

 rather well rounded, appressed at the summit, and marked by very 

 feeble lines of growth. The usual crisscross, microscopic, closely 

 spaced, incised lines that cut the lines of growth obliquely both pro- 

 tractively and retractively and numerous closely spaced dots and 

 wavy vermiculated lines of white are present both on the spire and 

 base. The periphery is feebly obsoletely angulated. Base somewhat 

 inflated, well rounded. The aperture is broadly oval ; outer lip strongly 

 expanded and reflected; the inner lip also is expanded and very broadly 

 so at its insertion, and reflected over the umbilicus, which it leaves 

 as an open chink. The lip continues into a heavy parietal callus, which 

 renders the peritreme complete. 



