1901.] ON THE BROAD-NOSED LEMUR. .121 



the trachea upon the arch, occasioned by the position of the heart, 

 which lies witli its longitudinal axis much more nearly at right 

 angles to the long axis of the body than in most mammals. 



The Alimentary Canal has been already fully described, but in 

 examining this sj^stem one is much struck by the great resemblance 

 the different parts bear to the corresponding organs of Dasypus. 

 This perhaps is specially the case with the liver, which is almost 

 an exact counterpart on a small scale of that of Dasypus vilJosus. 

 . The liver of Tatusia, on the other hand, differs materially from those 

 of Dasypus and Clilamydopliorus ; it is much rounder and more 

 compact in form ; the left lateral lobe shows no great preponder- 

 ance in size over the rest, and the caudate lobe is very much 

 smaller. 



I have nothing to add to previous descriptions of the respiratory 

 or generative organs. 



5. Notes on the Broad-nosed Lemur^ Hapalemur simus. 

 By Frank E. Beddard, M.A., F.R.S. 



[Received January 31, 1901.] 

 (Text-figures 21-25.) 



Some years since ' I was enabled to add to the existing knowledge 

 of Hap)alemur griseus by the examination of two specimens that 

 had died in the Society's G-ardens. I am now able to compare 

 the facts which I then ascertained with the structure of the only 

 other species of the genus — H. simus. The individual which I have 

 dissected was an example deposited in the Society's Gardens by 

 the Hon. Walter Rothschild, M.P., E.Z.S., last year. After living 

 for some months it died of a diseased condition of certain of 

 the lymphatic glands of the abdominal cavity. The spleen also 

 was invaded by pus, but in other respects the carcase showed no 

 pathological conditions. The animal was a female. 



Our present knowledge of the anatomy of this Lemur is due to 

 Grray, Jentink, and Milne-Edwards. The species was founded by 

 Gray^, who described as well as figured the entire animal; besides 

 external characters, Dr. G-ray dealt with and figured the skull and 

 the dentition. So far as they go, the facts set down by Gray do 

 not appear to me to be in want of correction. Later Dr. Jentink 

 again figured ^ the skull of H. simus, comparing it with that of 

 H. griseus by means of other figures. These di-awings also seem to 

 me to represent the distinctions between the skulls of the two 

 species accurately. Finally, the late Prof. A. Milne-Edwards in 

 the last issued volume of his and Grandidier's ' Histoire natarelle 

 de Madagascar,' has figured not only the skulls of the two species, 



' P. Z. S. 1S84, p. 391, and ibid. 189 J, p. 449. 

 - " IVotes on Hapalemur si?mts, &c.," P. Z. S. 1872, p. 829. 

 ^ "On some rare and interesting Mammals," Notes Leyd. Mus. vii. 1885, 

 p. 33. 



