COCHLOSTYLA-PROCHILUS. 47 



This is a decidedly thin shell, and although the whorls are con- 

 vex, the general outlines of the spire are somewhat concave. The 

 length of the aperture is contained about 2 times in the entire 

 length of the shell. 



C. CUYOENSIS PfeifFer. Unfigured. 



Subperforate, ovate-pyramidal, rather glabrous, somewhat shining, 

 of a cinnamon-tawny color with flexuous pale streaks and one red- 

 dish band. Suture lightly impressed ; whorls 5, nearly fiat, the last 

 scarcely exceeding one-third the total length. Columella short, 

 thickened w r idely reflexed. Aperture oval ; peristome thin, little 

 expanded. 



Alt. 30, diam. 15 ; aperture, alt. 13, width 8 mill. 



Island of Cuyo, Philippines, very rare. 



B. cwjoensis PFR., P. Z. S., 1842, p. 152 ; Monogr. ii, p. 43. 



From the very closely allied C. calobapta this differs in the solid 

 shell, less convex whorls and less dilated peristome. 



C. FICTILIS Broderip. PL 16, figs. 16, 17. 



Narrowly perforate, fusiform-pyramidal, solid. Cream-white, 

 with longitudinal stripes of dark brown, these streaks often broken 

 into angular spots, sometimes zigzag or branching. 



Spire high, apex obtuse ; whorls 6, almost flat. Aperture con- 

 tained about 2J times in the entire length, oblique; periston^e very 

 broadly and roundly expanded and reflexed, its face pure white, 

 lererse cream-white ; basal lip receding. Columella roundly reflexed, 

 strongly calloused above where it joins the base of the shell. 



Alt. 34, diam. 15 mill. 



Cuyo, Philippines. 



Bulinusfidilis~BKOV.,P.Z.S., 1840, p. 96; Conch. Illustr. f. 

 115, 116. Bulimus fictilis REEVE, Conch. Syst. ii, t. 173, f. 1 ; 

 Conch. Icon. t. 9, f. 44. PHIL., Abbild. i, p. 54, Bui. t. 1, f. 5. 

 PFR, Monogr. ii, p. 53; Conchyl. Cab. p. 211, t. 59, f. 10, 11. 

 Bulinus larvatus BROD., P. Z. S., 1840, p. 96 ; Conch. Illustr. f. 

 117. 



This form is well differentiated from the group of virgata-dryas- 

 partuloides, being slenderer in contour, and totally different in color- 

 pattern. 



