[40] ‘Zoology of the Voyage of the “Beagle,”’ 1843. “Reptiles,” by Mr. Bell, p. 49.
[41] ‘The Reptiles of India,’ by Dr. A. Günther, Ray Soc. 1864, p. 413.
[42] Bell, ‘History of British Reptiles,’ 1849, p. 93.
[43] J. Bishop, in ‘Todd’s Cyclop. of Anat. and Phys.’ vol. iv. p. 1503.
[44] Bell, ibid. p. 112-114.
[45] Mr. C. J. Maynard, ‘The American Naturalist,’ Dec. 1869, p. 555.
[46] See my ‘Journal of Researches during the Voyage of the “Beagle,”’ 1845, p. 384.
[47] ‘Travels through Carolina,’ &c., 1791, p. 128.
[48] Owen, ‘Anatomy of Vertebrates,’ vol. i. 1866, p. 615.
[49] Sir Andrew Smith, ‘Zoolog. of S. Africa: Reptilia,’ 1849, pl. x.