THE GEOLOGICAL SURVEY OF SCOTLAND NEAR GULLANE. 



115 



Gullane are repeated, namely, Rhizodus Hibberti, Gonatodus punctatus, Elonichthys 

 Robisoni, E. striatus, Rhadinichthys ornatissimus, Rh. brevis, Nematoptychius 

 Greenocki, and Wardichthys cyclosoma. And of these eight species, four, namely, 

 Gonatodus punctatus, Elonichthys Robisoni, Elonichthys striatus, and Nematoptychius 

 Greenocki, are the commonest of all the fishes which are to be found in the Wardie 

 nodules. 



I now give a second table showing the proportion of the specifically determined 

 Gullane fishes represented in Lower Carboniferous estuarine rocks of the Edinburgh 

 •district belonging to higher horizons than the Wardie Shales. 







<U 





<£> Ph 





2 di 



Named Species from Gullane. 





.8 «5 



1 c 

 J -S 



CD CO 



£3 



+3 



St A 



CD CD 



& a 

 3° 



h-J en 



Edge Coal 



3 

 •H o 



CO CD 



nk o 



Rhizodus Hibbeiii, 



X 



X 





X 



X 



X 



Gonatodus punctatus, 









X 



? 







— 



— 



— 



Elonichthys Robisoni, 









X 



X 



X 



X 



X 



— 



„ striatus, 









X 



X 



X 



— 



— 



— 



,, striatulus, . 









— 



— 



— 



— 



— 



— 



Rhadinichth i/s ornatissimus, 









X 



X 



X 



— 



X 



— 



„ brevis, 









X 



— 



— 



— 



— 



— 



„ elegantulus, 









— 



— 



— 



— 



— 



— 



„ formosus, 









— 



— 



— 



— 



— 



— 



Nematoptych ius Greenocki, 









X 



X 



X 



X 



X 



X 



Wardichthys cyclosoma, 









X 







— 











— 



11 





8 



5 



4 



3 



4 



2 



From this table, that of the eleven named species found in the Gullane beds, — 



Eight occur in the Wardie Shales. 



Five in the Burdiehouse Limestone. 



Four in the Oil Shales between the Burdiehouse Limestone and the Lower Marine 

 Limestone series. 



Three in the Lower Limestone series. 



Four in the Edge Coal series. 



Two in the Upper Limestone series. 



Or, to express the matter in different words, while nearly four-fifths of the named 

 Gullane species are represented at Wardie, these species become fewer and fewer as we 

 proceed upwards in the Lower Carboniferous of the district, till in the Upper Limestone 

 series only two, or less than one-fifth, has as yet been met with. 



In my paper already quoted, I have remarked (p. 698) "that it is scarcely possible 

 to mark out satisfactory zones by means of the fishes, so far as the Lower Carboniferous 

 rocks are concerned " ; but I have also qualified this statement by another, namely, 

 that " some amount of difference there is between the lists from the top and from the 



