404 University of CaUfornia Pullications in Zoology [Vol. 2] 



LITERATURE CITED 

 Allen, J. A. 



1894. Cranial variation in Neotoma micropus due to growth and individual 

 differentiation. Bull. Am. Mus. Nat. Hist., 6, 233-246, pi. 4. 



COCKERELL, T. D. A., MiLLER, L. I., AND PrINTZ, M. 



1914. The auditory ossicles of American rodents. Bull. Am. Mus. Nat. 

 Hist., 33, 347-378, text figs. 1-124. 

 DoRAN, A. H. G. 



1878. Morphology of the mammalian ossicula auditus. Trans. Linnean Soc. 

 (of London), ser. 2, Zool., 1, 371-497, pis. 58-64. 

 Gregory, W. K. 



1910. The orders of mammals. Bull. Am. Mus. Nat. Hist., 28, 1-524, text 



figs. 1-25. 

 Grinnell, J., AND Dixon, J. 



1918. Natural history of the ground squirrels of California. Bull. State 



Comm. Hort., 7, 597-708, pis. 1-5, text figs. 1-30. 

 Grinnell, J. 



1923. A systematic list of the mammals of California. Univ. Calif. Publ. 



Zool., 21, 313-324. 

 Howell, A. B. 



1924. Individual and age variation in Mierotus montanus yosemite. Jour. 



Agr. Res., 28, 977-1015, pi. 1, text figs. 1-25. 

 Jayne, H. 



1898. Mammalian anatomy. J. B. Lippincott Co., pp. 496-505, text figs. 



399-409. 

 Kingsley, J. S. 



1917. Outlines of comparative anatomy of vertebrates. (P. Blakiston 's 



Son & Co.), pp. X + 449, 406 figs, in text. 

 McCoy, G. W. 



1912. Notes on the bionomics of rats and ground squirrels. Public Health 



Reports (U. S. Public Health Service), 27, 1068-1072. 

 Mitchell, P. C. 



1911. On longevity and relative variability in mammals and birds; with a 



note on the theory of longevity. Proc. Zool. Soc. London, 1911, 

 425-548. ''^ 



Parker, W. K. 



1874. On the structure and development of the skull in the pig (Sus 



scrofa). Philos. Trans. Royal Soc. London, 164, 289-336, pis. 28-37. 



1885. On the structure and development of the skull in the Mammalia. 



Part 2, Edentata, part 3, Insectivora. Philos. Trans. Royal Soc. 



London, 176, 1-275, pis. 1-39. 



Taylor, W. P. 



1918. Revision of the rodent Genus Aplodontia. Univ. Calif. Publ. Zool., 



17, 435-504, pis. 25-29, 16 figs, in text. 

 Wilhelm, J. 



1924. Zur Entwicklungsgesehichte der Hinterhauptsschuppe Rindes. Anat. 

 Anz., 59, 1-11, 7 figs, in text. 



Transmitted June 3, 19S5. 



