COCHLOSTYLA-CALOCOCHLEA. 139 



ened, white or flesh-colored ; columella subvertical, inserted deeply 

 in the base, and having a strong lobe or fold above. 

 Alt. 44, diam. 42 mill, (average specimen.) 



Island of Polillo off the E. coast of S. Luzon. 



H. polillensis PFR., P. Z. S. 1861, p. 190 ; Novit. Conch., p. 233, 

 t. 60, f. 1, 2; Monogr. v, p. 281. H. portei PFR., P. Z. S. 1861, p. 

 191 ; Novit. Conch., t. 60, f. 7-11. H. ajax PFR., P. Z. S. 1861, p. 

 191 ; Novit. Conch., t. 60, f. 3.H. hector PFR., P. Z. S. 1861, 

 p. 191. 



This is a large, globose-conoid species, with finely checkered 

 cuticle. 



Color-var. polillensis (typical ; figs. 43, 44) has a brownish-yellow 

 ground-color, bandless, or with very faint sutural and columellar 

 bands. 



Color-var. portei (figs. 47, 50) is very light greenish-yellow, with 

 a distinct band at suture and umbilicus. 



Color-var. ajax (figs. 45, 46, 48) has a dark reddish-brown ground- 

 color. 



Color-var. hector (fig. 49) has four dark bands. 



Transition forms are not uncommon. The large series before me 

 confirms Pfeiffer's judgment in uniting the several races. 



C. ANDROMACHE Pfeiffer. Unfigured. 



Imperforate, subglobose, rather thin, striatulate, chestnut colored, 

 little shining. Spire convex, apex minute. Whorls 4-4o, moderately 

 convex, the upper white, penultimate tawny, the last globose, not 

 descending, sometimes encircled by light spiral line. Columella 

 white, subvertical, compressed. Aperture oblique, lunate-rotund, 

 inside pearly ; peristome simple, whitish, everywhere narrowly ex- 

 panded, margins converging, the right margin flexuous. 



Alt. 28, greater diam. 37, lesser 30 mill. (PfV.) 



Polillo, Philippines. 



H. andromache PFR., P. Z. S. 1861, p. 191 ; Monogr. v, p. 282. 

 Probably a variety of C. polillensis. 



C. PERAFFINIS Pilsbry. PI. 54, figs. 47, 48. 



Imperforate, globose-conoid, solid, having low regular wrinkles of 

 growth and on the spire faint spiral strue. Ground-color brownish- 

 yellow with inconspicuous darker oblique streaks, and having a nar- 

 row black-chestnut band at the suture and around the columel/a. 



