MONOGRAPH 



OF THE 



SIRENOID AND CROSSOPTERYGIAN 



GANOIDS. 



Bif 



L. C. MIALL, 



PEOFESSOE OF BIOLOGY IN THE YOEKSHIEE COLLEGE, AND CUBATOB TO THE 



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Pages 1—32 ; Plates I, Ia, II— V. 



LONDON: 



PEINTED POE THE PAL^EONTOGEAPHICAL SOCIETY. 



1878. 



