COCHLOSTYLA-EUDOXUS. 31 



apex slightly obtuse. Whorls 6, the last slightly carinated in the 

 middle and having a pitch-black line at the suture. Aperture 

 oblique, oblong-oval ; the outer lip thickened and reflexed, pitch- 

 black. Umbilicus none. (Brancsik.*) 



Alt. 36, diam. 18 ; aperture, alt. 18, width 12 mill. 



Matupit, New Britain. 



Helix (Geostrochus) heimburgi BRANCSIK, Jahresheft des Natur- 

 wissenschaftlichen Vereines des Trencsiner Comitates, 1890-'91, p. 

 80, t. 7, f. 2a, b. 



Probably the same as Dr. Cox's C. hindei. 



Section XII. EUDOXUS Albers, 1850. 



Eudoxus ALB., Die Hel. p. 137. MARTENS, Die Hel. 2d edit, 

 p. 179, type B. effusus Pfr. SEMPER, Reisen im Archip. Phil., 



Landmoll. p. 213. 



The shell is ovate or ovate conic, imperforate, smooth, shining, 

 very light colored, generally thin and destitute of hydrophanous 

 cuticle. Columella rather narrow, its face flattened. 



This section is rather near in shell characters to Phengus. Ana- 

 atomically, as far as known, Eudoxus presents no features not found 

 in Cochlostyla generally. 



C. EFFUSA Pfeiffer. PL 7, figs. 42, 43. 



Imperforate, ovate, rather thin ; very lightly striated, the earlier 

 whorls minutely spirally striated.. Covered with light buff cuticle, 

 paler above, Avhite under the cuticle. 



Spire conoidal, apex obtuse ; whorls 5, slightly convex. Aper- 

 ture half the length of the shell, white within ; peristome white, 

 thin, broadly expanded, especially on the outer and basal margins. 

 Columella vertical, narrow, flattened. 



Alt. 40, diam. 30 mill. 



Alt. 37, diam. 26 mill. 



Tablas, Philippines. 



Bulimus effusus PFR., P. Z. S., 1 842, p. 152 ; Monogr. ii, p. 27. 

 REEVE, Conch. Icon. t. 12, f. 64. 



The narrow, bevelled columella and the broadly expanding lip 

 are characteristic. The unicolored form (fig. 42) was the original 

 type of the species. 



Color-var. fasciata (pi. 7, fig. 43). Like the type in form, but 

 having chestnut-brown bands at suture and columella, and two on 

 the median part of the body-whorl. 



