684 MR. F. E. BEDDAED ON THE [June 1 5, 



Chatin *, W. A. Forbes t, Rapp J, and Flower § have dealt with 

 various points in its anatomy, the first three having occupied 

 themselves chiefly with the salivary glands, tongue, and associated 

 structures, while Flower has given in his well-known lectures at 

 the Royal College of Surgeons a general account of the alimentary 

 canal in which a number of facts are mentioned for the first time. 

 A good many anatomical details aie given in the monograph of 

 Rapp ; but only the external form, the skull, and the tongue are 

 figured by that anatomist. In fact it is the tongue and the 

 salivary glands which have engaged the attention of most of 

 those who have occupied themselves with the structure of this 

 Edentate. As to the intestine, the folds which are so cha- 

 racteristic of this animal and Myrmecophaga are apparently not 

 mentioned by Rapp. He does refer, however, to the fine net- 

 work of a more minute character which is formed by the mucous 

 membrane of the intestine. Of this he remarks that it cannot be 

 altered by stretching the gut. I shall refer in the proper place 

 more particularly to the memoir of Hyrtl || upon the arterial 

 system, who figures the arteries of the brain and of the limbs. 

 The results obtained by Hyrtl from his examination are referred 

 to by Tandier % in his important memoir upon the arteries of the 

 brain in a series of mammals. The placenta of Tamandua is 

 described by Milne-Edwards**. I have myself ft referred to the 

 alimentary canal of this Edentate, which is formed upon a simple 

 plan like that of certain other lower mammals, the continuous 

 mesentery of the reptiles being preserved without any of the 

 secondary connections which are found in most other mammals. 

 The gut had been also, and j)reviously, described by Mitchell Jl. 

 The muscular anatomy is fully described by Windle and Parsons §§, 

 who quote previous literature. It is noteworthy that these authors, 

 although they naturally include Tamandua and Myrmecopliaga in 

 the same family, find, nevertheless, some myological difFei-ences 

 between them. 



The brain is described by Elliot Smith ||||, and some of its 

 arteries by myself ^^. Upon this matter I have an additional 

 observation to make, and am able to compare the arterial system of 

 the brain in the genus Tamandua with that of Myrmeco'phaga. The 

 specimen of Tamandua which I described is in the Museum of the 

 Royal College of Surgeons. I have now some notes to ofi'er upon 

 a second example, which died in 1905, and of which the brain was 



* Ann. Sci. Nat. (5) xiii. 



f " On some points in the Anatomy of the Great Anteater {Myrmecophaga 

 jubata)," P. Z. S. 1882, p. 287. 



+ ' Die Edentaten,' Tiibinaen, 1852. § Medical Times and Gazette, 1872. 



11 Denkschr. k.-k. Akad. Wien, vi. 1854. ^ Ibid. Ixvii. 1898. 



** Comptes Kendus Acad. Sci. Pai'is, Ixxiii. 1871, p. 1386. 

 ft P. Z. S. 1908, p. 570. 



IX Trans. Z. S. xvii. 1905, p. 455 & p. 457, iig. 11. 

 §§ P. Z. S. 1899, pp. 314 & 990. 



|l|| Cat. Phys. Series Mus. Eoy. Coll. Surgeons, vol. ii. 2nd ed. (London, 1902) 

 p. 288 ; and Trans. Linn. Soc. vii. 1899, p. 293. 



T[l[ ■' On the Arteries at the Base of the Brain in certain Animals," P. Z. S. 1904, 

 voL i. p. 188. 



