ENNEA.. 19 



38. Ennea seatoni, Beddome, P. Z. S. 1891, p. 315, pi. 29, figs. 15-19. 



Similar to E. cylindrelloidea, but considerably larger, with 

 101-11 whorls, finely, not very closely costulated. The aperture 

 is very differently shaped, being oval, considerably higher than 

 broad, with the subtubular portion in the right upper corner 

 almost cut off by a vertical parietal lamella and a thickened sub- 

 angular plait inside the outer margin ; both of these plaits are 

 twisted inside, so as to appear from the aperture like additional 

 teeth, there is also an internal obliquely descending columellar 

 fold and another external lamella just visible from the front; 

 peristome expanded throughout, deeply sinuate at the angle ; 

 last whorl free for a short distance behind the peristome, com- 

 pressed and bluntly subaugulate at the base. 



Length 9, breadth 2|, height of aperture nearly 2 mm. 



Hob. Limestone rocks east of Mooleyit, near Siam frontier, 

 Tenasserim. 



39. Ennea brevicollis, Blf. P. Z. S. 1899, p. 768, pi. 50, figs. 16, 17. 



Intermediate in size and form between E. cylindrelloidea and 

 E. seatoni, distinguished from the former by larger size, coarser 



Fig. 11. Ennea brevicollis. |. 



and more distant filiform costulation, and from the latter by its 

 differently shaped mouth, which is nearly as broad as high. 

 Whorls 11, all, except the upper three, filiformly costulate, the last 

 solute for a short distance and closely costulate where free. JSo 

 columellar lamellae. 



Length 8, breadth 2, height of aperture 1| mm. 



Hob. Moulmein (Theobald). 



B. Aperture semioval or oblong ; generally truncated above. 



a. Shell turreted. (HUTTONELLA). 

 40. Ennea bicolor, HuUon (Pupa), J. A. S. B. iii, 1834, pp. 86 & 93 ; 



i. M. N. n. 



Pfr. (Pupa) Mon. Hel ii, 1848, p. 352 ; Bs. (Pupa) A. M. N. H. (2) 

 iv, 1849, p. 125 ; Pfr. Mon. Hel iv, 1859, p. 342 ; Semper, Eeis. 

 d. Phil, iii, 1890-94, pi. 8, fig. 14 : Stol. (Ennea-Huttonella) J. A. 



c2 



