DISTRIBUTION. 



183 





Carboniferous 

 Limestone. 



s 



u 

 o> 

 03 



0) 



1 



0> 



a 



S3 



o 



1 

 '2 



1 



a! . 

 o to 



S3 I 

 PS 



Lower. 



Upper. 



BIMYABIA (continued). 

 Family — MxTiiima: (continued). 



Modiola Jenhinsoni, M'Coy, sp 



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 



X 



X 

 X 



X 



X 



X 



X 



X 

 X 



X 



X 



X 

























„ lithodomoides, B. Etherid^e, 

 juu., Sp. 











„ modiolaris, Sow., sp 



oftesa, B. Etherid^e, jun., sp. 





PvsidonicUa elomiata, Phill., sp 





Kirlcmani, Brown, sp 



leevis, Bronii, sp 









sulcata, Hind 









M yalina comjrressa, Hiud 



Fleminiji, M'Coy, sp 





,, peralata, de Kon 



pemoides, Portlock, sp 



redesdalensis, Hind 



„ sublameltosa, B. Etheridge,] un . 



Family — Arcid^: . 



Parallelodon any until s, Hind 



Ustriatus, Portlock, sp.... 



cancellatus, Martin, sp. ... 

 ,, cingtdatus, M'Coy, sp. ... 



concinnus, M'Coy, sp. ... 



„ ciirriKjatus, de Kon 



,, decussatus, M'Coy, sp. ... 

 ,. elegans, M'Coy, sp 



