CYPRIDELLINA. 31 



7. Cypridellina alta. Sp. nov. Plate III, figs. 16 a, d. 



Carapace globose, ovate-triangular, short ; rounded behind ; truncate in front, with a 

 long sloping broad face, sinuous in profile, impressed with deep transverse sinus and 

 distinct beak, and angular below with an axe-like edge. The tubercle, not very strong, 

 is high up and forward. The posterior curve is marked low down by the base of a 

 hollow double spine. 



Deep, short, and broad, this species has neither smooth Cypridinella nor furrowed 

 Cypridella to match it. 



Length \ ; height \ ; thickness \ inch. Proportions 8:9:7. 



A grey shell, one of several, from Little Island, Cork, collected by Mr. J. Wright, 

 F.G.S. Similar forms, as casts in white, yellowish, and grey Carboniferous Limestone 

 from Vise, some with remnants of the shell, have been received from our friend, M. Bosquet, 

 of Maestricht, For. Cor. Geol. Soc. 



8. Cypridellina Bosqueti. Sp. nov. Plate III, figs. 20 a, b. 



This is a cast, imperfect at the notch and hood (not indicated in the sketch), of a 

 Cypridinella with an extreme condition of the antero-ventral margin, which slopes down- 

 wards and backwards from the hood at an angle of 65°, to form a sharp, coulter-like, 

 vertical prow (too prominent in fig. 20 b) ; the ventral margin rises rapidly backwards 

 from it, with an oval outline, to the narrow, rounded, posterior extremity, which was 

 once probably spined. As the dorsal line is nearly straight, the side profile of the 

 carapace is ovate-triangular. The tubercle is strong and rather forward. 



Length \ ; height \; thickness ^ inch. Proportions 12 : 9 : 8. 



Prom the Upper Carboniferous Limestone, Vise, Belgium. We dedicate this well- 

 featured species, with really large beak,^ peculiar prow, and triangular outline, to M. J. 

 Bosquet, For. Cor. Geol. Soc, one of the most earnest students of Belgian fossils, and to 

 whom we are indebted for a large and choice collection of the fossil Cypridinada of 

 Belgium. 



^ Broken in the specimen and not shown in the figure. 



