208 



C. Archeri it differs in its globosely pyriform shape and the 

 greater posterior curvature of the aperture. Among extra- 

 limital species it makes a near approach, judging by illustrations, 

 to C. injlata, Lamarck, of the English and Parisian Eocene, but 

 is more abruptly attenuate to the front, and the aperture not so 

 gradually arched behind. 



12. Cyppsea leptorhyneha, McCoy. 



Reference. — C. (Luponia) leptorJiynclia, Pal. Yict., Decade V., 

 tab. 49, fig. 1— Ic. (1877). 



Pyriform, ventricose ; spire exposed, deeply depressed ; outer 

 lip much arched and protuberant posteriorly, no distinct anal 

 canal ; anterior canal straight, short, narrowed and subtruncate 

 at the front. 



Dimensions. — Length, 58 ; width, 36 ; height, 31. 



Localities. — Eocene. Muddy Creek ! ; River Murray Cliffs ! ; 

 Schnapper Point ! {McCoy) ; Cheltenham ! 



The author of the species compares it with C. injlata and 

 C. glohularis, of the European Eocene, and with C. Haveri and 

 C. Genei, Michelotti, of the Italian Miocene; but distinguishes it 

 by the greatly inarched posterior end of the outer lip as well as 

 the different form of the anterior beak. 



13. Cyprsea ovulatella, spec. nov. 



Shell globose, abruptly descending to the broad flatly-convex 

 spire, less abruptly descending to the short truncate anterior 

 canal, which is bevelled on the inner margin and somewhat effus- 

 ively reflected. 



Aperture roundly-narrowed posteriorly, thence widening to the 

 base of the anterior canal, which is almost closed by the approxim- 

 ation of the large basal plications of each lip. 



Outer lip narrowly-reflected, flat, but with a sharply rounded 

 exterior margin, furnished on the inner edge with from eight to 

 ten strong tooth-ridges, the anterior one of which is oblique, and 

 margins the left side of the canal. Inner lip with ten to eleven 

 small transverse ridges ; the columella-plate is high, abruptly as- 

 cending from the inner lip, bluntly crenate on the edge ; columella 

 with a strong fold, which runs out to the front of the anterior 

 canal. 



Dimensions. — Length, 11; width, 8-5; height, 7 (at 4-5 mm. 

 from the posterior end). 



Localities. — Eocene ; Aldinga Cliffs and Adelaide-bore. 



This species has a general resemblance to the recent Trivia 

 ovuJata, Lamarck, but the produced anterior canal separates it 

 generically. 



