144 COCHLOSTYLA-CALOCOCHLEA. 



a wide subsutural and a wide peripheral zone (one or two narrow 

 bands between them), and on the base several wide and narrow 

 bands. 



Spire low, inconspicuous; whorls 4J, little convex, the last but 

 little descending in front. Aperture large, banded inside, peristome 

 white, broadly reflexed ; columella oblique, wide, nearly straight. 



Alt. 334, diam. 45 mill. 



Calayan, Philippines. 



H. damahoyi PFR., P. Z. S. 1856, p. 328; Monogr. iv, p. 210; 

 Novit. Conch, iv, p. 8, t. Ill, f. 1-4. Cochlostyla damahoyi SEMPER,, 

 Reis., p. 175, t. 18, f. 8 (anatomy.) 



Allied to C. zonifera, but differs markedly in the arrangement of 

 colors and the obscure malleation. The two blackish bands are 

 sometimes absent (fig. 42.) 



C. CAILLIAUDI Deshayes. PI. 50, figs. 2, 3 ; pi. 52, fig. 26, 27. 



Imperforate, solid, large, globose-depressed-conoid. Surface finely 

 and obscurely spirally lirulate, the last whorl quite obviously sculpt- 

 ured with obliquely forward-descending malleations forming narrow 

 ridges, becoming concentric beneath. Ground-color clear greenish- 

 yellow, having a dark zone below and another above the periphery. 

 Hydrophanous white cuticle forming numerous narrow encircling 

 bands, mostly worn off in front of the aperture. 



Spire rather conoidal ; whorls 5, but slightly convex, the suture 

 superficial; last whorl slightly descending in front. A perture large, 

 white and faintly showing the bands inside ; peristome broadly re- 

 flexed, recurved, white; columella oblique, nearly straight. 



Alt. 43, diam. 45 mill. 



Camaruan, prov. of Camarines Sur, Luzon (Hidalgo.) 



H. cailliaudi DH. in Guerin's Mag. de Zool. 1839, t. 5. PFR., 

 Monogr. i, p. 246. REEVE, Conch. Icon., f. 33. Cochlostyla 

 cailliaudi HIDALGO, Journal de Conchyliologie 1887, p. 131. 

 Helix ferruginea LEA, Trans. Amer. Philos. Soc., 2d Ser., vii, p. 

 464, t. 12, f. 17 (1841.) 



A large, solid shell, decidedly malleated, light yellow with two 

 brown bands, the whole covered with numerous narrow, interrupted 

 hydrophanous bands. The typical form is shown in fig. 3, of pi. 

 50, the specimen figured being nearly denuded of hydrophanous 

 cuticle in front. 



