322 PROCEEDINGS OF THE MALACOrOGICAL SOCTETY. 



1. A. BITENTACTJLATUS (Quoy & Gainiarcl), 1832. 



Limax litentaculatus, Q. & G. : Voy. Astrolabe, ZooL, vol. ii, p. 149, 



pi. xiii, figs. 1-3. 

 Janella maculata, Collinge : P.Z.S., 1894, p. 527. 

 Neojanella diihia, Cockerell : P.Z.S., 1891, p. 217. 



I have examined more specimens of A. diibius, Coldl., and found 

 the central tooth of the radula always symmetrical on the posterior 

 part of the radula, and sometimes, but not always, oblique or 

 asymmetrical on the anterior part. As pointed out by Plate, the 

 slight differences in the generative organs are not sufiicient to separate 

 this form from that which we consider to be A. hitentaculatus. 

 Cockerell's species is from the south side of Cook Strait, and we are 

 no doubt fully justified in assuming that it represents the typical 

 A. litentaculatus, which was found in Tasman Bay. 



Var. antipodum (Gray), 1853. 



Janella antipodarum, Gray: Ann. Mag. Nat. Hist., 1853, vol, xii, 

 p. 414. 



Differs from the species only in the absence of spots. Plate has 

 shown that the animal dissected by Collinge {A. hitentaculatus) was 

 sexually immature. 



2. I^ov. subsp. rufovenosus. Figs. 1-3. 

 Animal limaciform, moderately large, broad, with more or less 

 rounded tail when at rest; long, slender, semi-cylindric, with 

 pointed tail when crawling ; semi-transparent, with an opaque and 

 darker central area when alive. Colour yellowish, with numerous 

 small white papillae, median and side-grooves reddish-brown, with 

 four longitudinal rows of brown spots close to the side - grooves ; 

 mantle-area and its neighbourhood orange ; sole yellowish - white. 



Spirit specimens are light yellow, the grooves more or less brown, 

 and the spots are sometimes indistinct. Head with two distinct oval 

 oral lobes ; tentacles cylindrical ; head- shield extending to about 

 midway between head and mantle-area, with a median groove. ]N"otum 

 densely covered with small papillae, median and side-grooves well 

 pronounced, the latter occasionally bifurcating, their number being 

 about fourteen on each side, ten of which are post-pallial. Mantle- 

 area open on the right side, the respiratory orifice not far from the 



