EXPLANATION OF PLATE IV. 



Fig. 1. Reduced outline of the type of P. maconelli, Reeve, from P.Z.S., 

 1851, PI. xii., upper figure. 



„ 2. Reduced outline of Mon. Austr. Land Shells, PL iii., fig. 5. 



„ 3-5. Reduced outlines from specimens lent by Dr, Cox. 



„ 6. Reduced outline of the type of P. falconeri. Reeve, from Concho- 

 logia Iconica, Vol. vii. (Helix), PI. Ixviii., fig. 355. 



,, 7. Reduced outline of specimen from~the Richmond River, N.S.W. 

 (Aust. Mus. Coll.) 



„ 8. Reduced outline of Mon. Austr. Land Shells, PI. xvi., fig. 6. 



