488 Bulletin American Museum of Natural History. [Yo\. XX^'II, 



1899. Spencer, B., and Georgina Sweet. The Structure and Develop- 

 ment of the Hairs of INIonotremes and Marsupials. Part I. Mono- 

 tremes. Quar. Jour. Micr. Sci., n. s., vol. xli, pt. iv, pp. 549-558, 

 pll. 44-46. 

 Corrects and extends Poulton's results. 



1885. Thomas, Oldfield. Notes on the Characters of the difTerent Races 

 of Eckidna. Proc. Zool. Soc. Loncl., p. 331. 

 Gradation from spiny to hairy forms. 



1894. Weber, M. Beitrag zur Anatomic und Entwickelung des Genus 



Manis. Op. cit. iufra (p. 502). 

 1904. Die Saugetiere. Vide supra (}). 470). 



Section on Monotremata. 



1893. Wilson, J. T., and M'Kay, W. J. S. On the Homologies of the 

 Borders and Surfaces of the Scapula in Monotremes. Proc. Linn. 

 Soc. N. S. Wales (2), vol. viii, pp. 377-387. 



The Mesozoic Orders Protodonta, Multituberculata, Triconodonta, Tri- 



tuberculata. 



1903. Ameghino, F. Los Diprotodontes del Orden de los Plagiaulacideos 

 y el Origen de los Roedores y de los Polimastodontes. An. d. 

 Mus. Nac. d. Buenos Aires, tomo ix, })p. 81-192. 



1902. Bensley, B. a. On the Identification of Meckelian and Mylohyoid 



Grooves in the Jaws of Mesozoic and Recent Mammalia. Vide 

 supra (p. 484). 



1903. Broom, R. On the Lower Jaw of a small Mammal from the Karroo 



Beds of Aliwal North, South Africa. Geol. Mag. (4), vol. x, 



August, p. 345. 



Karoomys. 



1905.4. On some Points in the Anatomy of the Theriodont Reptile 



Diademodon. Vide supra (p. 481). 

 1905.6. On the Affinities of Triiylodon. Trans. So. Afr. Phihs. 



Soc, vol. xvi, pt. 1, pp. 73-77. 



Triiylodon probably a mammal. 



1906.1. On some little-known Bones of the Mammalian Skull. 



Vide supra (p. 477). 

 Triiylodon, p. 371. 



1907.3. On the Origin of jNIammals. Vide .supra (p. 482). 



Triiylodon, p. 7. 



