CYPRIDELLINA. 29 



3. Cypridellina intermedia, Sp. nov. Plate V, figs. 8 a, h, c. 



This relatively small form seems at first sight to be the tubercled analogue of Cypri- 

 dinella superciliosa (PI. II, figs. 1 a, b c) ; it differs, however, from it in all its profiles, 

 without reference to the local swelling or tubercle, being more elliptical in side-view and 

 more compressed in edge-view. It much resembles Cypridellina Burrovii in side-view, 

 but it is much thinner, and its tubercle is placed farther back. 



Length \ ; height ^; thickness ^-g inch. Proportions 6:5:3. 



From the grey Carboniferous Limestone of Bathgate, Linlithgowshire. In Mr. W. 

 Grossart's collection. 



4. Cypridellina elongata. Sp. nov. Plate III, figs. 18 a, b ; 19 a, b. 



Carapace elongate, suboviform, somewhat variable in outline ; narrow-elliptical behind, 

 bearing evidence of a posterior apex or spine. Notched in front, and sloping below the 

 hood or beak into a prow, at an angle of about 60°. Tubercles strong, rather high up. 

 Edge-view pyriform ; end-view pentagonal. 



Length f; height y ; thickness \ inch. Proportions 13 : 7 : 9. 



Several casts in the grey limestone of Vise have been kindly communicated to us by 

 M. Bosquet, of Maestricht ; some retain portions of shell (white), and we see the beak 

 and tubercles more thoroughly expressed in the carapace than in the cast. 



4.* Cypridellina elongata, Var. Hibernica, nov. Plate III, figs. 9 a — c. 



Smaller, feebler, less pronounced in thickness and tubercles, but not otherwise dis- 

 similar, this must be taken for a local variety of the Belgian C. elongata above noticed. 



Length \ ; height \ ; thickness \ inch. Proportions 9|^ : 6 : 5^. 



This is an abundant and variable form, as shells and casts, in the Carboniferous 

 Limestone of Little Island, Cork. The tubercle is in some high up, in others lower 

 down and further back ; occasionally it is very faintly expressed. 



Collected by Mr. J. Wright, F.G.S., of Belfast. 



