DISTRIBUTION 



1 85 







Carboniferous 

 Limestone. 



.2 



3 

 gq 



a> 



P4 



o 



1 



® 



1 

 1 



1 



1 

 'oa 



6 



1 m 





Lower. 



Upper. 



DIMYAEIA (continued). 

 Family Trigonid^e (continued). 



Protoschizodus rectanyuhirts,M.'Coy, sp. 

 ,, snbiequalis, de Kon. ... 

 ,, siibtritnratus, M'Coy, sp. 



„ triangularis, Hind 



,, trigonalis, de Kon 



Family — Unionid^;. 



X 

 X 



X 

 X 



X 



X 

 X 



X 

 X 

 X 



X 







X 

 X 



X 

 X 



X 



X 

 X 



X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 

 X 



X 

 X 



X 

 X 

 X 

 X 

 X 



X 

 X 



X 

 X 

 X 

 X 



X 

 X 

 X 



X 

 X 



X 





, ,, var. rhomboidalis, 



Hind 

 , angulata, de Ryekholt, sp. 

















, polmontensis, Rhind, sp.... 







, subconstructa, Sow., sp. ... 

 , subrotunda, Brown, sp. ... 





A nth 







var. ftr^a w.m, Hind 





dolobrata, Sow. , sp 



„ laevis, var. scotica, Hind 

 lanceolata, Hind 









,, ,, var. carinata, 

 Hind 

 modiolaris, Sow., sp 





,, Phillipsii, Williamson, sp. 

 pulchra, Hind 













subcmtralis, Salter 



«%>araZZeZa, Portlock.sp 

 valmciensis, Hind 





Wardi, Etheridti-e 





,, Wifliamsoni, Brown, sp. 

 var. obtusa, 

 Ludwig 



