Geological Society. 231 



The Millstone-Grit equivalents have no Ostraeoda ; but the overlying 

 Coal-measures are rich in Carbonice, with a few others, such as 

 Cijpridina radiata. 



A great variety of genera and species come from beds at or near 

 the base of the Scar Limestone and its equivalents in North Lanca- 

 shire, Westmoreland, Cumberland, and Northumberland. The calca- 

 reous shales of the Yoredale series have several interesting forms, 

 including Phreatura concinna ; none from the Millstone-Grit. 



The Lower Coal-measures give Beyricliia arcuata and Carbonia, 

 sp. The middle beds have B. arcuata and Carbonia fabulina, 

 common; rarer, C. Rankiniana, C. secans, C. scalpeUus, C. Ward- 

 ia)ia, and Philomedes elongata. In the Upper Coal-measures B. 

 subarcuata reappears ; and in the /Sptror?»/s-limestone Leperditia 

 inflata is the latest Carboniferous Ostracod in England. 



In Northamptonshire the deep Gayton boring (at 730 feet) has 

 given KirTcbya variabilis, K. plicata, Bythocypris sublunata. Macro- 

 cyjjris Jonesiana, Cytherella extuberata, and C. attenuata, all but one 

 belonging to the Lower-Carboniferous series. In Salop, South 

 Wales, and Somerset the Carboniferous Limestone has yielded several 

 good species of Leperditia, Kirkbya, Moorea, Bythocypris, Bairdia, 

 &c. Carbonia Agnes and C. Evelince belong to the South- Welsh 

 Coal-measures. 



The distribution of the Carboniferous Ostraeoda in Ireland re- 

 quires further work ; but the Lower-Carboniferous Shales and the 

 Mountain Limestone near Cork and elsewhere are very rich, as are 

 also some parts of the latter in the Isle of Man. 



The Ostraeoda of the Permian Formation were then treated of in 

 relation to their Carboniferous allies, and the range of the British 

 Carboniferous Ostracods in Europe and North America was noticed in 

 some detail. 



The results of the examination were shown in two extensive tables. 



3. " Note on some Vertebrata of the Eed Crag." By R. Lydekker, 

 Esq., F.G.S. 



This communication contained briefly the results of a reexamina- 

 tion of the specimens from the bone-bed of the Red Crag in the 

 British and Ipswich Museums, a series of casts from the latter 

 having been added to the former. The forms noticed were Hycena 

 striata, with which H. antiqua and H. arvernensis were considered 

 probably identical ; Mastodon, of which the author thought three 

 species, M. arvernensis, M. longirostris, and M. Borsoni were repre- 

 sented ; Siis, of which two forms, the larger probably S. erymanthius 

 or S. antiquus, the smaller S. p)a'laochcerus, had been detected ; a 

 Tapir, which was probably Tapirus arvernensis or T. elegans rather 

 than T. priscus ; Hijjparion gracile ; a Rhinoceros referable to the 

 hornless R. incisivus rather than to R. Schleiermacheri, though the 

 latter probably also occurred ; and a species of Albatross (Diomedea), 

 represented by a right tarso-metatarsus, and the associated proximal 

 phalangeal bone of the fourth digit. 



