COCHIJTOMA. 83 



II. Group of C. zebra. 



Ovate or oblong shells, very closely zebra-striped with dark 

 chestnut throughout, the stripes sometimes confluent below. 

 Apex rather large and obtuse. Last whorl generally almost 

 smooth. 



6. C. INDOTATA (Reeve). PI. 6, fig. 10. 



Shell oblong-ovate, thin, ventricose, decussate-striate above. . 

 Buff-white, lightning streaked with broad chestnut stripes. 

 Spire conic, the apex obtuse. Suture subcrenulate-marginate. 

 Whorls 7 to 8, a little convex, the last about as long as the 

 spire, nearly smooth. Columella arcuate, callous, abruptly 

 truncate at the base. Aperture slightly oblique, acuminate- 

 oval, whitish inside; peristome simple. Length 136, diam. 

 62, aperture 73 x 36 mm. (Pfr.) . 



West Africa (Cuming coll.). South Africa: Elim, near 

 Cape Agulhas (Albers coll.). 



A. indotata RVE., Conch. Icon, v, pi. 6, f. 18 (1849). 

 PFR., Monogr. iii, p. 483. v. MARTENS Conchol. Mittheil. 

 ii, p. 139. 



7. C. ZEBROIDES (E. A. Smith). 



"Shell rather solid and heavy for its ske, ovate, white, 

 varied with numerous close-set and slightly oblique reddish- 

 brown stripes, which are rather regular and only slightly un- 

 dulating ; spire obtusely conical, white towards the apex which 

 is rather rounded and not acute, suture but slightly oblique, 

 crenulated ; whorls 7, quite convex, the third and fourth from 

 the nucleus ornamented with a close granulation, the granules 

 being elongate; on the two succeeding whorls they are less 

 conspicuous, and on the last become almost obsolete ; aperture 

 small, not equalling half the entire length of the shell, 

 within coated with a white opaque enamel and streaked here 

 and there rather indistinctly by the exterior brownish stripes ; 

 columella coated with a thin white callosity, which extends as 

 far as the upper extremity of the outer lip; it is a little 

 arcuated and rather abruptly but obliquely truncated at the 

 basal end; peristome simple, regularly curved, and thin." 

 (Smith). 



