ENNEA. 21 



exactly corresponds with that of Streptaoeis. The radula is very 

 long, the sides curved up like a sheath of a bamboo-leaf. The 

 centre tooth is short, sharply pointed, with a rapidly widened base. 

 The adjoining and following teeth are longer and slightly curved, 

 decreasing in size outward, and arranged 9.1.9. It is carni- 

 vorous. In January 1897 Mr. Collett took specimens off the 

 sea-wall at Galle, Ceylon, preying upon Opeas gracilis, which it 

 resembles somewhat. The long anterior body, combined with the 

 protrusive odontophore, of E. bicolor enables the creature to enter 

 and reach the furthest internal whorls of 0. gracilis and other 

 shells.] 



41. Ennea macrodon, Blf. J. A. S. B. xlix, 1880, p. 205, pi. 2, fig. 15 



Shell turreted, pale, horny, with fine, close, vertical hair-like 

 costulation ; spire diminishing very slightly above, apex obtuse ; 

 whorls 7, convex, the last ascending slightly near the aperture, 

 not indented; aperture vertical, semioval, obliquely truncated 

 above, almost filled up with teeth, consisting of a prominent high 

 re-entering subbifid parietal plait, a small tubercular tooth in the 

 right margin, a large lamelliform obliquely transverse basal tooth 



Fig. 13. Ennea macrodon. f. 



inside the lip, and a blunt columellar tooth ; another deep lamella 

 running into the shell is seen behind the basal one ; peristome 

 white, expanded, sinuate at angle, margins united by a distinct 

 callus. 



Length 5, breadth 2, height of aperture 1^ mm. 



Hab. Pykara, Nilgiri Hills. 



Young shells in this and the next five species have the dentition 

 of the aperture fully developed. 



42. Ennea subcostulata, Blf. J. A. S. B. xlix, 1880, p. 206, pi. 2, 

 fig. 14 (upper fig.). 



Very near E. macrodon, chiefly distinguished by the filiform 

 costulation being almost or quite obsolete. The teeth in the 

 aperture are similar but less massive, and in the only adult 

 specimen examined the broad lamellar basal tooth is replaced by 

 two tubercular teeth. 



Length 5i, breadth 2, height of aperture 1| mm. 



Hob. Shevroy Hills, S. India, 



