COCHLOSTYLA-AXINA. 161 



increasing, a little convex, separated by little impressed suture, 

 lightly striated, decussated by almost microscopic spiral lines, 

 sculptured with obliquely forward descending wrinkles ; last whorl 

 nearly flat on the base, malleate-rugose, in front shortly but dis- 

 tinctly deflexed. Aperture oblique, rotund pentagonal ; peristome 

 broadly expanded, a little reflexed, callous labiate, reddish-brown, 

 the upper margin sigmoidly sinuate, the outer chanelled in the 

 middle; columella short, obliquely descending, outwardly plicate, 

 base nodiformly thickened. (Moll.*) 



Alt. 32, diam. 48 mill.; apert, width with callus 32, alt. 25 mill. 



ML Limutan, dist. Morong, Luzon. 



0. (Axina} Kobelti v. MOLL., Nachr. D. M. Ges. 1890, p. 205. 



C. /EBUENSIS Broderip. PI. 20, figs. 3, 4, 5, 6. 



Imperforate, depressed, solid, acutely carinated, about equally 

 convex above and below the carina. Covered with a buff cuticle, 

 becoming reddish on the body-whorl, and either continuous above, 

 with dark spots at the carina (fig. 3), or conspicuously streaked 

 (figs. 5, 6) ; the base more or less cut by spiral dark and light lines. 

 Apical whorls purple or livid reddish-brown. Surface smooth. 



The surface is quite smooth, even in perfectly fresh examples. 

 Whorls 4j, nearly flat, the last descending more or less below the 

 carina in front. Aperture oblique, bluish-white inside; peristome 

 dark brown, obtuse, narrowly expanded above, angled at the keel, 

 narrowly reflexed beneath. Columella obliquely sloping, nearly 

 straight, more or less obviously toothed below. 



Alt. 19, greater diam. 36, lesser 30} mill. 



Alt. 16, greater diam. 29, lesser 25* mill. 



Western Zebu. 



Carocolla zebuensis BROD. (in part), P. Z. S. 1841, p. 46. RVE., 

 Conch. Syst. ii, t. 168, f. 14, 16. H. zebuensis PFR., Monogr. i, p. 

 296; Conchyl. Cab. t. 68, f. 12, 13, 14, 15. HIDALGO, Obras, i, p. 

 143, t. 11, f. 4, 5. Cochlostyla (Axina) zebuemis SEMP., Landschn. 

 Phil. p. 191. MLLDFF., Landschn. Cebu, p. 234. 



Broderip and authors having included two species under the name 

 zebuensis, it becomes necessary to select one for the type. The pub- 

 lished figures all represent the variegated form with smooth epider- 

 mis, and that may, therefore, retain the name zebuensis. 



The range of variation is considerable in size as well as in color- 

 ing. Figs. 5, 6 of plate 20 represents the largest specimen I have 

 seen. 



11 



