4 MR. W. K. PARKER OK THE DEVELOPMENT 
Bridge, Professor T. W. 
1. “On the Osteology of Amia calva” Jour, of Anat. and Phys., vol. xi., 
pp. 605-622 ; plate 23. 
2. “ On the Osteology of Polyodon folium.” Phil. Trans., 1878, Part II., pp. 683- 
733 ; Plates 55-57. 
Gegenbaur, Dr. Carl. 
1. ‘ Untersuchgen zur vergleichtacjen Anatomie der Wirbelthiere.’ (Drittes 
Heft: Das Kopfskelet der Selachier.) Leipzig : 1872. 
2. Elements of Comparative Anatomy/ Translated by Jeffrey Bell. London- 
1878. 
Gunther, Dr. Albert. 
1. “On Ceratodus” Phil. Trans., 1872, pp. 511-571 ; Plates 30-42. 
2. c Study of Fishes.’ Edinburgh: 1880. 
Hubrecht, Dr. A. A. W. tc Beitrag zur Kentniss des Kopfskeletes der Holocephalen.” 
Niederlandisches Archiv fur Zoologie, Hi., taf. xvii., pp. 1-22. 
Huxley, Professor T. H. 
L c Memoirs of the Geological Survey.’ London: 1861. 
2. ‘ Elements of Comparative Anatomy.’ London: 1864. 
3. { Anatomy of the Vertebrated Animals.’ London: 1871. 
4. “ On Menobranchus lateralis” Proc. Zool. Soc., March 17, 1874, pp. 186-204; 
plates 29-32. 
5. “ On Ceratodus For stem.” Proc. Zool. Soc., Jan. 4, 1876, pp. 24-59. 
Muller,, Di. Joh. Vergleichende Anatomie der Myxmoiden, der Cyclostomen, mit 
durchbolirtem Gaumen.” Berlin: 1835. 
Parker, W. K. 
1. “ On the Skull of the Common Frog.” Phil. Trans., 1871, pp. 137-211; 
Plates 3-10. 
2. “ On the Skull of the Salmon.” Phil. Trans., 1873, pp. 95-145 ; Plates 1-8. 
3. " On the Skull of the Batrachia.” Phil. Trans., 1876, Part II., pp. 601-669 ; 
Plates 54-62. 
4. “ On the Skull of the Urodeles.” Phil. Trans., 1877, pp. 529-597 ; Plates 21- 
29. 
5. “ On the Skull of Sharks and Skates.” Trans. Zool. Soc., vol. xii., part iv.. 
1878, pp. 189-234; plates 34-42. 
6. “ On the Skull of the Urodeles.” Trans. Linn. Soc., 2nd series, Zool., vol. ii., 
1881, pp. 165-212, plates 14-21. 
7. “ On the Skull of the Batrachia.” Part III. Phil. Trans., 1881, Part I., 
pp. 1-266 ; plates 1-44. 
8. “ On the Skull of the Urodeles.” Trans. Zool. Soc., vol. xi., part vi., 
pp. 171-214; plates 36-41. 
