COCHLOSTYLA-CALOCOCHLEA. 155 



VAR. Three-banded with brown, one band at the white suture, 

 one at the periphery, the third around the columella (Hidalgo.') 



VAR. Shell buff-tawny, the base and three narrow zones brown. 

 Leyte. (Hidalgo.} 



VAR. Much larger and thicker than specimens from Leyte, the 

 lip much more strongly reflexed, and pure white. Alt. 39, diam. 

 47 mill. 



Island of Panaon, off S. Leyte. 

 Doubtfully referred to sphcerion. Described by Semper. 



VAR. Another form resembling v. intincta was collected by 

 Semper at Higaquit, Tandag, S. Juan de Bislig and Placer, on the 

 east coast of Mindanao. 



Var. NANA Semper. 



A small form from Maasin and Malitboc, on the southern coast 

 of Leyte. There are 5 principal color-patterns, as follows: (1) 

 Unicolored yellow, no trace of bands ; (2) Clear yellow, with a 

 brown line at suture, and* gradually becoming brown toward the 

 peristome and beneath ; (3) brownish-yellow, beneath dark brown ; 

 (4) last whorl unicolored brown-black ; (5) black with a light yel- 

 low band above. The largest specimen measures : alt. 25, diam. 

 34 mill.; the smallest specimen, alt. 21, diam. 27 mill. 



C. XANTHOBASIS Pilsbry.. PI. 54, figs. 38, 39, 40. 



Subglobose, thin but rather strong, obliquely striatulate and some- 

 times very superficially spirally malleated. White above, bright 

 straw-yellow beneath. Suture narrowly bordered beloiv with yellow. 



Spire convex, less obtuse than in C. intincta Shuttlw. Whorls 4, 

 the earlier nearly flat, with linear non-impressed suture ; last whorl 

 somewhat descending and then ascending in front. Peristome 

 entirely pure white on both face and reverse, broadly expanded; col- 

 umella arcuate, thin, its face excavated ; outer edge of the columel- 

 lar callus brown -tinted. 



Alt. 33, greater diam. 35, lesser 29 mill. 



Alt. 28, greater diam. 34 mill. 



Albay, Philippines. 



Allied to certain forms of C. sphcerion in color-pattern, but differ- 

 ing in the broadly expanded lip, etc. 



The cuticle is extremely thin above, and is readily lost, leaving 

 that part of the surface chalk-white. When present, it is nearly 



