44 



HENRY CLIFDEN BURNUP. 



removes from the record dimensions that are suspiciously 

 under- estimated. 



His measurements are as follows : 



E. farquhari M. & P. (type), height 2-80, width 1-50 mm. 



E. farquhari (type of ''labyrinthea"), height 2'Ob, 

 width 1'20 mm. 



Both of these shells were collected at Grahamstown. 



The dimensions in the following table are selected from 

 those of over forty specimens that I have measured, from the 

 various localities in Avhich the species in its typical form is 

 known to live : 



As these measurements are taken from the largest, the 

 smallest, and an intermediate specimen from each locality, 

 they indicate very fully the divergence of size and proportion 

 of width to height to which the form is subject, the greatest 

 development being reached at Bathurst. 



Var. bertha? {Melv. & Pons.). PL IV, figs. 25, 26, 27. 



Ennea berthas Melv. & Pons., Ann. & Mag. Nat. Hist., vol. viii (1901), 



p. 315, pi. ii, fig. 1. 

 Ennea berthse Melv. £• Pons.; Connolly, Ann. S. Af. Mus., vol. xi 



(1912), p. 67. 



Shell like E. farquhari, typical, but elliptical in contour, 

 with six, less ventricose, whorls and shallower suture ; the 

 striae are rather less regular, shorter, and a little further 

 apart ; the armature of the aperture is very similar, but the 

 labral tooth is not quite so massive, and is less divided, the 

 internal columellar plait is somewhat broader, and the short. 



