211 



Though these proportionals indicate a wider and higher shell for 

 C. toxorhynclta, yet they fail to express the striking differences in 

 the profiles of the two species. 



Locality. — Eocene ; Muddy Creek (J. Dennant). 



17. Cyppsea platypyga, McCoy. 



Reference. — C. (Aricia) platypyga, Pal. Vict., Decade III., 

 tab. 30, figs. 1— Ic (1876). 



This somewhat oblong-pyriform shell is remarkable for its 

 short, extremely wide, subtruncate, posterior beak ; the right side 

 of which is much wider than the more-pointed left side. 



Dimensions. — Length, 75 ; width, 45 ; height, 39. 



Localities. — Eocene. Schnapper Point! (McCoy); Muddy 

 Creek ! ; Table Cape (R. M. Johnston). 



18. Cyprsea eonsobrlna, McCoy. 



Reference. — C. (Aricia) consohrina, Pal. Yict., Dec. V., tab. 49, 

 figs. 2— 2c (1877). 



" Related to C. 'platy'pyga, but is more oval, much shorter 

 canals and concealed spire. Length, 2 inches 8 lines ; width, ^^^^ ; 

 height, -f^. Very rare at the Moorabool River." — McCoy. 



Erroneously quoted as occurring in the River Murray Cliffs. 



19. Cyprsea platyrhyneha, McCoy. 



Reference. — C. (Aricia) platyrhynclta, Pal. Vict., Dec. III., 

 tab. 30, figs. 2—20 (1876). 



Pyriform, gradually tapering to a broad, flat, elongate truncated 

 beak ; posterior canal short and abruptly reflexed ; spire con- 

 cealed ; anterior part of aperture with a few small obtuse teeth, 

 the rest edentulous. 



Dimensions. — Length, 100; width, 47; height, 43; length of 

 anterior canal, 25. 



Localities. — Eocene. Bird-Rock Bluff, Spring Creek {McCoy); 

 Table Cape {R. M. Johnston). 



20. Cyprsea amygdalina, spec. nov. 



Shell broadly oval, with a moderately low convex back, highest 

 at about three-sevenths from the posterior end, thence flatly 

 convex to the abrupt margin of the slightly-sunken concealed 

 spire ; the anterior portion tapers gradually to the short, straight, 

 broad, subtruncated canal. The posterior canal is short, though 

 prominent, obtuse, slightly upturned, and bent to the left. 



Aperture rather wide, the hinder part gently arched to the left. 

 Outer lip flatly rounded, broadly inflected, with about twenty 

 short rounded teeth on the inner margin, which are somewhat 

 evanescent posteriorly. The base on the right side is very broad 

 in the middle, concavely sloping at the aperture, which is fur- 



