1 20 COCIILOSTYLA-COKASIA. 



Hidalgo has already (Obras i, p. 147) raised the question of the 

 identity of the H. broderipi of Pfr. and H. broderipi Reeve. They 

 seem to me perfectly distinct; and I have, therefore, restored the 

 original name given by Broderip to the form figured in the Iconica, 

 which represents Broderip's species. The name is not preoccupied 

 in the genus Cochlostyla. 



C. CASTA Pfeiffer. PI. 25, figs. 37, 38. 



Imperforate, depressed, about equally convex above and below, 

 carinated, striatulate and obsoletely malleated, shining, white under 

 a fugaceous pale yellowish epidermis ; suture linear, chalky-white ; 

 whorls 4, nearly flat, the last obsoletely angled at the suture and 

 below the carina ; columella short, sloping, excavated ; base sub- 

 tortuous ; aperture subtrapezoidal ; peristome expanded, white, 

 basal margin slightly arcuate, forming an angle with the columella. 



Alt. 23, greater diam. 47, lesser 38 mill. (Pfr.) 



Philippine*. 



H. casta PFR., P. Z. S. 1848, p. 110 ; Conchyl. Cab. t. 123, f. 1, 

 2 ; Monogr. iii, p. 206. REEVE, Conch. Icon. f. 86. 



A large form, not yet found by recent collectors. The entire 

 surface of the shell is superficially indented or malleated. 



C. PUELLA Broderip. PI. 24, figs.22, 23, 25 ; pi. 25; fig. 39. 



Imperforate, globose-depressed, carinated at the periphery, thin, 

 white under a very thin, deciduous yellowish cuticle, having a brown 

 band at the peripheral angle, becoming evanescent on the earlier 

 part of the body-whorl. Surface smooth, very delicately striated, 

 and showing under a lens fine spiral lines on the earlier whorls. 

 Suture linear, w r hite. Whorls 4, nearly flat, the last carinated, 

 descending a little below the carina at the aperture. Aperture 

 oblique, subtrigonal-lunar ; peristome thin, narrowly expanded ; 

 columella wide, flat, its inner edge straight, oblique, forming an 

 angle with the basal margin. 



Alt. 19 J, greater diam. 31, lesser 26 mill. 



Island of Camiguing ; Itianga, Rio Salos, Rio Jibon, Pasian, 

 Baubo, Rio Agusan, Island of Mindanao, Philippines. 



Carocolla puella BROD., P. Z. S. 1841, p. 45. H. puella PFR. 

 Symb. iii, p. 74 ; Conchyl. Cab. t. 68, f. 3-5 ; Monogr. i, p. 298. 

 REEVE, Conch. Icon. f. 66. H. ( Corasid) puella HIDALGO, Obras 

 Malacol. i, p. 148, t. 21, f. 4. Cochlostyla (Corasid) puella SEMPER, 

 Reisen in Archip. Phil., Landmoll. iii, p. 167. 



