PULMONATA. / 



2. Janella BITENTACULATA. 

 Depressed, yellowish, black spotted. 



Limax bitentaculatus, Quoy Sf Gaimard, Voy. Astrol. t. . f . . 

 Janella (bitentaculatus). Gray in Mrs. Gray's Fig. Moll. iv. 112, 

 1850. 



Mrs. Gray, Fig. Moll.t. 180. f. 15. 



Philippi, Man. Conch. 239. 

 Hab. New Zealand, Tasman's Bay, on leaves. 



" Head distinct, mouth oval ; tentacles rather short, clubbed at 

 the end ; eyes very small, terminal. Back with a deep longitu- 

 dinal groove extenchng the whole length, commencing from the 

 head, divided rather to the left to siu-rouud the pulmonary aper- 

 ture, which is placed on the back, and with oblique striae di- 

 verging from each side of this groove. Foot scarcely distinct 

 from the rest of the body, yellowish white ; the back is dirty 

 yellow, with pale brown spots. It has no appearance of any 

 shield containing a homy shell." — Quoy. 



May be the same as the former. 



b. Front of body, head and tentacles distinct from and retractile 



into the mantle. 



Fam. 2. CRYPTELLAD^. 



Animal when first hatched enclosed in a spiral shell, and fur- 

 nished with an operculum which eventually falls off, and the shell 

 is at length hidden in the substance of the mantle. Subcaudal 

 gland ? Teeth ? 



1. CRYPTELLA. 



Body elongate, compressed, rather high, gibbous above. Head 

 truncate ; tail keeled, acute, short. Mantle shield-shaped, co- 

 vering half the body, free in front; hinder part covering the 

 front of the shell. Opening for respiration on the right side of the 

 mantle, under the hinder part of the shell ; anus rather in front 

 of the mantle; orifice for generation behind the small tentacles. 

 Foot slender. 



Shell spathulate, oblong, depressed, transversely striated, 

 rather thick, brittle; front part white, covered with the mantle ; 

 hinder exserted like a small boss, green, shining, with a hidden 

 spire. 



