COCHLOSTYLA OF MINDORO PROVINCE 487 



COCHLOSTYLA (CHRYSALLIS) PETITI Bartsch 



Plate 109, Figure 4 



1850. Bulimus cailliaudi Petit, Journ. Conchyl., vol. 1, p. 404, pi. 13, fig. 3. 

 1853. Bulimus cailliaudi Pfeiffer, Monographia heliceorum viventium, vol. 3, 



p. 323. 

 1859. Bulimus cailliaudi Pfeiffer, Monographia heliceorum viventium, vol. 4, 



p. 383. 

 1876. Bulimus cailliaudi Pfeiffer, Monographia heliceorum viventium, vol. 7, 



p. 269. 

 1S77. Cochlostyla eleclrica Semper, Reisen im Archipel der Philippinen, pt. 2, vol. 



3, p. 222; in part. 

 1895. Helicostyla electrica Pilsbry, Man. Conch., ser. 2, vol. 9, p. 231; in part. 

 1S96. Chrysallis electrica Elera, Catalogo sistematico de toda la fauna de Filipi- 



nas, vol. 3, p. 612; in part. 



1897. Cochlostyla cailliaudi Hidalgo, Journ. Conchyl., vol. 44, pp. 249, 250, 267, 



268, 274, 281, 2S3, 293, 330, 335, 338, 351. 



1898. Cochlostyla electrica Mollendorff, Abh. Naturf. Ges. Gorlitz, vol. 22, p. 



147; in part. 

 1901. Cochlostyla electrica var. cailliaudi Hidalgo, Obras malacologicas, pt. 1, pp. 



552-553 (in part), pi. 113, fig. 3. 

 1914. Cochlostyla electrica Mollendorff, Kobelt, and Winter, Semper's Reisen 



im Archipel der Philippinen, vol. 10, pp. 339-340; in part. 



1932. Cochlostyla (Chrysallis) pettiti Bartsch, Journ. Washington Acad. Sci., vol. 



22, p. 340. 



1933. Helicostyla mindoroensis cailliaudi Clench and Archer, Papers Michi- 



gan Acad. Sci., Arts, Letters, vol. 17, pp. 545, 548-549. 



The name Bulimus cailliaudi Petit, December 1850, was preoccu- 

 pied by Bulimus cailliaudi Pfeiffer, published in August 1850 in the 

 Zeitschrift fur Malakozoologie, page 86, and I have rechristened it 

 Cochlostyla (Chrysallis) petiti. I believe with previous authors that 

 it comes near Cochlostyla electrica and Cochlostyla lichenifer, but I 

 think that it is not specifically or even subspecifically related to either. 



As I have not seen specimens, I copy Petit's description and figure. 



"Shell oblong oval, very light. Interior of the aperture white, 

 tinted with rose. Externally the shell is covered with a yellowish 

 periostracum which is denser on the last whorl. Aperture very broad. 

 The outer lip expanded and a little reflected, having the edge tawny 

 rose colored, approaching the color of the dregs of wine. 



"This species, which in some respects resembles Bulimus sylvanus 

 and Bulimus dryas, has, nevertheless, characters of its own such as 

 the presence of an umbilicus. Its texture too is less solid, and also 

 differs in its number of whorls, its coloration and wider aperture." 



COCHLOSTYLA (CHRYSALLIS) ROLLEI Mollendorff 



Shell very large. The nuclear whorls are flesh-color; the post- 

 nuclear whorls are brown, variegated, streaked and spotted with 

 yellowish or greenish-yellow axial bands. The surface is covered with 



