CLAVATOR. 197 



Conch. Cab. p. 50, pi. 15, f. 5. REEVE, Conch. Icon, v, pi. 

 52, f. 344. DESH. in Fer. Hist. p. iii, pi. 140, f. 9-11. Clava- 

 tor obtusatus Gra., CROSSE & FISCHER, Moll. Madag., pi. 22, 

 f. 4. DAUTZENB., Bull. Soc. Zool. France xxvii, 1902, p. 198. 

 KOBELT, Conch. Cab. BuUminidce, p. 650, pi. 95, f. 3, 4. 

 ANCEY, Nautilus, xvi, p. 80. ? Leptospira striata SWAINS., 

 Malacology, p. 335. 



This is the most slender and lengthened species of the group, 

 with more whorls than the others. At Andrahomana the 

 specimens are large, 80 to 85 mm. long, and the surface is 

 smoother and more glossy. Though so unlike in contour, 

 C. obtusatus is related to C. grandidieri by its conspicuous 

 color-pattern, and the raised, concave columellar lip. 



2a. Var. subobtusatus (Crosse et Fischer). PI. 49. fig. 35. 



Shell narrowly rimate, long-turrited, rather solid, closely 

 costulate-striate, rather shining, the suture impressed. The 

 upper part of the spire is broken, the 4 whorls remaining 

 being slightly convex, the last whorl not descending, a little 

 larger than the penultimate and next earlier whorls. Colu- 

 mella straight, vertical. Aperture truncate-oval; peristome 

 unexpanded, the margins distant, separated; columellar mar- 

 gin dilated reflexed, nearly covering the umbilical chink ; basal 

 and outer margins thickened. Length of broken shell 55, 

 diam. 19 mm., aperture 20 mm. long, 14 wide. (C. et F.} 



Southern Madagascar: fossil in the dunes near Cape Saint 

 Marie (Grandidier). 



Bulimus subobtusatus C. & F., Jourii. de Conchyl. 1868, 

 p. 183, pi. 7, f. 2. 



The aperture in this form is said to be narrower towards 

 the base than in C. obtusatus, the columella is more vertical, 

 and the ends of the peristome are more separated. These 

 differences are hardly sufficient to give the fossil form 

 specific rank. 



Group of C. moreleti. 



3. C. WATERSI (Angas). PI. 50, fig. 38. 



"Shell imperforate. elongately turreted. rather thin, shin- 



