DEVELOPMENT OF THE SKULL IN THE BATRACHIA. 
5 
Gegenbaur, Dr. Carl. ‘ Untersuchungen zur vergleichenden der Wirbelthiere ’ 
(Selachians). Leipzig: 1872. 
Gray, Dr. John Edward, F.R.S, “ On Dactylethra” Proc. Zool. Soc., 1864; p. 458. 
Gunther, Dr. A., F.R.S. 
1. “ Batrachia Salientia.” Brit. Mus. Cat., 1858. 
2. ‘‘Reptiles of British India.” Ray Soc., 1864. 
3. A series of papers descriptive of the Batrachia in the Proc. Zool. Soc., as 
follows:—1862, p. 190; 1863, p. 249 (and Ann. and Mag. of N. H., 1863, 
p. 26); 1864, pp. 46 and 303; 1868, p. 478 ; 1869, p. 500; 1870, p. 401 ; 
1872, p. 586 ; 1873, p. 165 ; 1875, p. 567. 
4. “Description of Ceratodus.” Phil. Trans., Part II., 1871, pp. 511-571; 
Plates 30-42. 
Hubrecht, Dr. A. A. W. ‘ Kopfskelet der Holocephalen ’ ( Callorhynchus and 
Chimcera). Leyden and Leipzig : 1877. 
Huxley, T. H., LL.D., F.R.S. 
1. “The Croonian Lecture.” Proc. Roy. Soc., Nov. 18, 1858. 
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. Article “Amphibia.” Encycl. Brit., 9th edit., pp. 750-771. 
6. “ On Petromyzon .” Jour.of Anat. and Phys., vol. x., pp. 412-419 ; plates 17, 18. 
7. “On Ceratodus Forsteri.” Proc. Zool. Soc., Jan. 14, 1876, pp. 23-59. 
Miall, Professor L. C. 
1. “On the Labyrinthodonts of the Coal Measures.” Rep. Brit. Assoc., 1873, 
pp. 225-249*; plates 1-3. 
2. Ibich, 1874, pp. 149-192 ; plates 4-7. 
Mivart, Professor St. George, F.R.S. 
1. “On the Classification of the Anourous Batrachians.” Proc. Zool. Soc., 1869, . 
pp. 280-295. 
2. “On the Common Frog.” ‘Nature’ Series. Macmillan and Co. 1874. 
3. “ On Pachybatraclius robustus.” Proc. Zool. Soc., 1868, p. 557. 
Muller, Joh. “ Vergleichende Anatomie der Myxinoiden, der Cyclostomen, mit 
durchbohrtem Gaumen.” Abh. Berl. Akad., 1835 ; Wiegm. Arch., 1836, ii., 
p. 245. 
Parker, W. K., F.R.S. 
1. “ On the Structure and Development of the Skull of the Common Frog.” 
Phil. Trans., 1871, pp. 137-211 ; Plates 3-10. 
2. “On the Skull of the Eel.” ‘ Nature,’ June 22, 1871, pp. 146-148. 
3. “ On the Skull of the Salmon.” Phil. Trans., 1873, pp. 95-145 ; Plates 1-8, 
