CANADIAN PALEOZOIC CORALS. 



77 



Average size of 

 meshes. 



Whether 



with septal 

 spines or not. 



Tabula? 

 of corallites. 



Tabula 



of tubules. 



Collector. Date. 



In different speci- 



Not seen 



Flat, 8 to 12 in 5 





J. Townsend, 1883. 



mens from 3 mm. 





mm. 







to 7 mm. across 











with some long 











irregular meshes. 











1 Generally long and 



Septal spines 



Concave, about 8 



Convex, vesic- 



R. Bell, 1859. 



narrow, width 



well preserv- 



in 5 mm. 



ular in pla- 



J. Townsend, 1883. 



from 2 to 3 mm. 



ed. 





ces, about 20 

 in 5 mm. 





Broad and spread- 



Indicated .... 



Generally flat, often 



Very con vex 



J. B. Tyrrell, 1890. 



ing. 





slightly concave 

 or convex, about 

 8 in 5 mm. 



and close set, 

 24 in 5 mm. 





j About 8 mm. across 



Not seen 



Generally flat, 





Prof. A. P. Cole- 









about 8 in 5 mm. 





man, 1K85. 



Rather irregular. 



Internal 



structure not prese 



rved. 



Prof. A. P. Cole- 



About 5 mm. a- 









man, 1885. 



cross. 











In parallel rows 



Indications of 



In small form 8 in 





T. C.Weston,1867. 





about6 mm. apart 



septa. 



5 mm. slightly 







in other speci- 





concave, in large 







mens large and 





form 4 or 5 in 5 







spreading, some 





mm. concave. 







of the expansions 











as broad as 11 











cent. 











Meshes very long 



Not seen 



Flat or slig h 1 1 y 





R. W. Ells, 1883. 





and narrow ; co- 





concave, 6 in 5 







rallites in parallel 

 lines. 





mm. 







Not seen 



Flat also slightly 

 convex or con- 



Slightly conca- 

 ve, abruptly 



R. Bell, 1862. 













cave, 6 in 5 mm. 



bent down at 

 the edges, 20 

 in 5 mm. 





Long and narrow ; 



Present 



Flat or slightly con- 



Straight or Logan, 1843. 



corallites often in 





vex, 10 to 20 in 



slightly con- 



R. Bell, 1862. 



paralled r o ws . 

 Meshes from 5 to 





5 mm. 



vex, vesicu- 



J. Richardson. 







lar at times, 





3 mm. across. 







20 in 5 mm. 



T. C. Weston, 1880. 



