DISTRIBUTION OF SPECIES 



185 





Thedford Region. 



Eighteen-mile 

 Creek. 







|8 



o 

 H 



of 



ffl 



02 



o 



c4 



p 

 o 



a 



t-T 

 © 

 >> 



* CO 



a) 



03 



u 

 o 

 O 



ft 



a? . 

 ■>-" a> 



CD 



02 



a> 



O 



i 

 | 



ao 



£ <» 

 o 

 a 

 H 



<D 



"5 



o 



O 



03 

 O 



02 



o 













Cn 









W 



vv 

 w 































r 





r 





Hydroidea : 

 200. Clathrodictyon reteforme (Nich. and 











s 















202. Slromatoporella granulata Nich 



203. St. incrustans Hall and Whitf 



Anthozoa: 



w 



w 









































R 

 R 



c 



R 





r 





























c 



c 











907 O 'nnhili'i (Billings) 

















208 C dichotoma Grabau , 









R 



c 





c 





c 













R 







210. T. ornata (Rom. ) 



91 1 Cladcmora iisheri ( Bill.) 



w 





















c 

 C 

 C 

 C 

 c 

 R 

 C 

 C 



c 



c 

 C 

 c 



Cn? 















91 9 CI frrmdosa (Bill ) 





















91 3 01 rffmeri (Bill ) 





















214 Striatopora linnseana Bill 





























































218 F placenta Rom 









































220 F turbinata Bill 







c 















2 9 1 F billingsi Rom . 













C 











R 







223. Microcyclus discus Meek and Worth . . 



w 



c 



















225 Z prolifica Bill 







c 



cf 

 C 



cf 















226 Cyathophyllum zenkeri Bill 





















227 Cty. conatwn Hall 

















c 





228 Qu robustum Hall 



















229. Heliophyllum exiguum Bill 



230 H halli E and H 



w 























C 



c 









r 



c 













232 Craspedophyllum archiaci (Bill.) 







c 









re 

 re 





233 C subcsespitosum (Nich.) 



















234. DiphyphyHum strictum E. and H 



235. Acervularia davidsoni E. and H 



w 

 w 

































236. Phillipsastrxa vernueili E. and H 



237. Cystiphyllum vesiculosurn Goldf 



238. C. conifottis Hall 







s 

 c 

 c 



























c 

 C 



















239 C superbum Nich 



w 

 w 



" 

















Spongus : 



240. Receptaculites neptuni Defr 



241. Astrxospongia hamiltonensis~M.. and W. 

























R 















i- 











