COCHLOSTYLA-EUDOXUS. 33 



Sutural margin often paler; earlier whorls either pale or tinted 

 with orange. 



The spire is conical, apex very obtuse. Whorls about 5, only 

 slightly convex. Aperture oblique, white within or having the 

 tint of the outside ; peristome thickened and somewhat expanded, 

 its face white ; columella nearly straight, white, sometimes truncated 

 at base. 



Alt. 32, diarn. 25 mill, (average specimen.) 



Alt. 35, diam. 24 mill, (elevated specimen.) 



Alt. 28, diam. 27 mill, (depressed specimen.) 



Philippines. 



Helix jonasi PFR., P. Z. S., 1845, p. 126 ; Conchyl. Cab., p. 298, 

 t. 50, f. 5, 6 ; Monogr. i, p. 225. REEVE, Conch. Icon., t. 26, f. 113. 

 H. albersi PFR., Zeitschr. f. Mai. 1849, p. 86 ; Monogr. iii, p. 

 300; iv, p. 362, etc. Helix buschi Pvn., P. Z. S., 1845, p. 126; 

 Monogr. i, p. 226. REEVE, Conch. Icon., Helix, t. 203, f. 1430. 

 H. perdita REEVE, Conch. Icon., Helix, t. 25, f. IQ&.Bul. brevi- 

 culus REEVE, Conch. Icon., t. 12, f. 65. ? B. leai PER. 



This species varies greatly in color and contour but the variations 

 are so connected and inter-related that I am unable to demarcate 

 the several described forms. Perhaps 0. leai is another variety of 

 this species, but I have identified quite another form as that species. 



The original figures of C. jonasi are copied on pi. 37, figs. 43, 44 

 of the preceding volume of the MANUAL. The typical C. buschi 

 is represented by figs. 53, 54, pi. 8. Reeve's H. perdita differs in 

 no respect from this. On pi. 17, fig. 32, is represented an 

 extreme form, being the most depressed specimen I have seen. 



The tone of color varies from faint green, through buff to a pink- 

 ish flesh tint. The earlier whorls are often light orange colored. 



C. SIMPLEX Jonas. PL 8, figs. 48, 49, 52. 



Imperforate, ovate-conic, solid. Green beneath, fading to while 

 on the spire. Surface delicately striated. 



Spire conic, apex rather obtuse; whorls 5 to 5, slightly convex. 

 Aperture about half the length of the shell, oblique, the outer lip 

 somewhat arching forward, narrowly expanded and thickened, 

 white. Columella vertical, rounded, slightly truncated below. 



Alt. 29, diam. 18 mill. 



Alt. 25, diam. 17 mill. 



Mindoro, Philippines. 



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