CETPTAUSTEXIA. 



181 



i, 1883, p. 149, pi. 36, figs. 1-5 (animal and shell), pi. 38, figs. 1-1 h 

 (anatomy) ; id. ii, 1899, p. 93, pi. 91, fig. 4 (dart-sac) ; id. 

 (Eurychlainvs) t. c. ii, p. 109 ; Cooker ell (Ciyptaustenia), 

 A. M. N. Ii. (6) vii, 1891, p. 99 ; id. Nautilus, xii, 1898, p. 10 : 

 nee V. planospira, Pfr. 1853. 



Shell ovately depressed, periphery roundly oval, thiu, smooth, 

 not highly polished, translucent, horny ; spire convex, flat above, 



B 



rsl 







[Fig. 63, — Cryptaustenia. succinea, Ev. 



A. Animal di'awn from life. Nat. size.' 



B. Animal from a spirit-specimen : viewed from the right and left 



sides. X 2. 



C. Genitalia. X 7. 



D. Teeth of the radula. X 328. 



E. Jaw. X 10-5.] 



apex not exserted, suture shallow ; whorls 3, rapidly increasing, 

 the last descending very slightly near the aperture, rounded at 



