Distribution of Species.. 



It appears from the table that the following five species of fish and five 

 species of plants are common to both the anterior and posterior shales, as 

 represented in the collections from the localities here considered : 



( Diplurus loiigicaudaius, Newb. (doubtful in posterior). 

 I Catopterus redfieldi, Egerton. 

 Fishes . . -j Catopterus gracilis, J. H. Red field. 

 I Ischypterus micropterus, Newb. 

 (^Undetermined ovate form. 



f Otozamites latior, Sap. 



I Otozamites brevifolius, F. Br. (doubtful in posterior). 

 Plants . . ^ Loperia simplex, Newb. 



Cycadinocarpus chapini, Newb. 

 l^A small undetermined Equisefum (?). 



The anterior shales alone have afforded the following six species each of 

 fish and plants : 



f Ptycholepis marshii, Newb. 



I Catopterus anguilliformis, W. C. Redfield. 



T^ Catopterus minor, Newb. 



Fishes • • i ^ , , / xt u 



Catopterus ornatus, JNewb. 



Ischypterus fidtus, Ag. 



^ Ischypterus minutus, Newb. 



' Pachyphyllum simile, Newb. 



Pachyphyllum brevifolium, Newb. 

 p ^ C lathropteris platyphylla, Brong. 



Baiera milnsteriana, Ung. 



Calamite-like stems, with head. 

 ^Undetermined stem, with spines. 



The posterior shales have produced the following single species offish and 

 two species of plants, not yet found in the various openings on the anterior 

 shales : 



Fishes . . Ischypterus gigas, Newb. 



-r> ( Equisetum roqersi, Sch. 



Plants - - \ J- t „ 7 . 01 



K Ctenophyllum braunianum, Sch. 



(429) 



