54 COCHLOSTYLA-CHRYSALLIS. 



brown. Columella broad, distinctly folded ; parietal wall and col- 

 umella covered with a heavy deposit of pure white callus, the reflexed 

 edge of the columella arid a band at the edge of the parietal callus 

 dark brown. Alt. 59, diam. 31 mill. 



Mindoro, Philippines. 



Bulimus electricus REEVE, Conch. Icon., t. v, f. 21 (April, 1848). 

 PFR., Monogr. iii, p. 326. Bui. lichenifer MORCH, Catal. Conch. 

 Kierulf, p. 29, t. 1, f. 3 (October, 1850). Bui. cailliaudi PETIT, 

 Journ. de Conchyl. 1850, p. 414, t. 13, f. 3. 



This species is allied in form to C. mindoroensis^ut it differs in hav- 

 ing the columella and parietal wall covered with an opaque porce- 

 lain-white callus edged with a brown band. The external coloration 

 of the shell, also, is different. 



There can be no reasonable doubt that the three forms included 

 in the above synonymy are specifically identical. Fig. 4 is Reeve's 

 original electrica ; fig. 5 is the lichenifer of Morch ; fig. 3 is drawn 

 from a specimen before me. 



Color-var. cailliaudi Petit (fig. 6) is a pale yellow individual or 

 perhaps a pale race, holding the same relation to the dark forms 

 that the typical C. chrysalidiformis holds to the var. ustulata Jay. 



