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 Uebersetzungsrecfit vorbehalten. 



On the Anatomy and Phylogenetic Position 

 of Polypterus. 



By 



H. B. Pollard, B. A., B. Sc. Scholar of Ch. Ch. Oxford. 

 (Aus dem Anatomischen Institut zu Freiburg i./B.) 



With pl. 27—30 and 10 woodcuts. 



Introduction. 



When in the summer of 1890 I finished my course at Oxford the 

 Governing Body of Christ Church prolonged my scholarship for a 

 year on condition that I should attempt some original work. To them 

 therefore and especially to my tutor, Mr. Barclay Thompson, I ex- 

 press my warmest thanks. 



I wrote accordingly to Prof. Wiedersheim at Freiburg and he 

 gave me a place in his Laboratory suggesting that I should work on 

 the head of Polypterus. The present paper is the outcome of the 

 ten months work. To Prof. Wiedersheim for his exceeding generosity 

 in placing material at my disposal and for the guidance and personal 

 kindness which he has always extended to me I am under the deepest 

 obligations. 



My thanks are due to my friend and fellow-worker Dr. H. H. 

 Wilder for much useful information on Urodeles. 



In this description of the anterior region oi Polypterus, I have endea- 

 voured not to repeat well-known observations of others. When therefore 

 an account seems incomplete reference to previous literature may explain 

 the omission. In tracing the most curious and important relationships of 



