LITERATUEE. 239 



for the protection of the median nerve and brachial artery 

 on their way down the arm. The genns Cynodraco (fig. 

 580, b) is only known as occurring in deposits believed 

 to be of the age of the Trias in South Africa ; and the 

 same formation contains a large number of other Eeptilian 

 types which are referred by Prof. Owen to the order of 

 the Theriodontia. The most important of these are Lyco- 

 sauncs (fig. 580, A and c), Cynochampsa, Galesaurus, Tigri- 

 suclius, and Cynosucluis. The eminent palaeontologist just 

 mentioned has further indicated that certain Permian Eep- 

 tiles (Brithopus, Deuterosaunis, &c.) are probably really refer- 

 able to the Theriodonts; and it would seem probable that 

 the Clepsydrops of Cope, from the Permian rocks of North 

 America, should be regarded as a member of this order. 



LITEEATUEE. 



1. " Ossemens fossiles." Cuvier. 1836. 



2. " Comparative Anatomy and Physiology of Vertebrate Animals." 



Owen. 1866-68. 



3. " Manual of Palaeontology." Owen. 2d ed. 1861. 



4. " Traite de Paleontologie." Pictet. 1853-57. 



5. " A Manual of the Anatomy of Vertebrated Animals." Huxley. 



1872. 



6. " Bridgewater Treatise." Buckland. 4tla ed. 1869. 



7. " Monograph on the Fossil Eeptilia of the London Clay." Part i., 



Chelonia. Owen and Bell. ' Palseontographical Society.' 1849. 

 Part ii., Crocodilia and Ophidia. Owen. Ihicl. 1850. 



8. " Monograph of the Fossil Eeptilia of the Cretaceous and Purbeck 



Strata." Owen. Ibid. 1860. 



9. " Monograph on the Fossil Eeptilia of the Wealden Formation." 



Owen. lUd. 1853, 1854, 1856, 1857, 1859, and Supplements 

 extending to 1876. 



10. " Monograph on the British Fossil Eeptilia of the Oolitic Forma- 



tions." Owen. Ihid. 1861. 



11. " Monograph on the Fossil Eeptiles of the Cretaceous Formation." 



Owen. Ihid. 1851, 1864. 



12. " Monograph of the Fossil Chelonian Eeptiles of the Wealden 



Clays and Purbeck Limestones." Owen. Ihid. 1853. 



13. " Monograph of the Fossil Eeptilia of the Liassic Formations." 



Owen. Ihid. 1865 and 1870. 



14. " Monograph of the British Fossil Eeptilia of the Kimmeridge 



Clay." Owen. Ihid. 1869. 



