1909.] STRUCTURE OF THE LESSER ANTEATER. 691 



duodenale. The gut was in fact quite " Reptilian." Owen has 

 remarked* upon a huge mesenteric gland 16 inches long which 

 lies parallel with the puckered coils of the small intestine, on 

 the rectal side of which, and therefore parallel to it, lies a row 

 of detached glands. I find a quite similar series of glands 

 in Tamandua tetradaciyla. There is one gland more or less 

 crescentic in shape which extends from close to the pancreas 

 anteriorly to near the commencement of the colon posteriorly. 

 Besides this there is a chain of detached glands seven or eight in 

 number which lie to the colic side of the large gland and are 

 also disposed in a crescentic form, thus following the curves of 

 the large gland. All these lymphatic glands are dark in colour, 

 as Owen states them to be in Myrmecophaga juhata. The 

 number of the smaller glands is not stated in Myrmecophaga. 

 The detailed agreement between the two Anteaters is, however, 

 remarkable, even if the exact number of the smaller glands does 

 not tally in the two cases. 



The Liver is, as Sir "W. Flower has pointed out, like that of 

 Myrmecophaga in the disposition of the lobes. I may mention 

 that when this viscus is viewed from the diaphragmatic aspect it 

 is seen to consist of three definite lobes only ; for the right and 

 left central are not so definitely distinguishable from each other 

 on this view as are either the left lateral or the right lateral from 

 the conjoined centrals. The falciform ligament shows a peculiarity 

 which I have not observed elsewhere. It divides (see text-fig. 220, 

 p. 692) of course the right and left central lobes, mai-king the 

 central fissui-e of the liver. It gives ofi" three seams which traverse 

 the surface of the liver, of wiiich two, those on the right side, run 

 to the clefts separating the right central into three subdivisions, 

 one of which is the cleft in which lies the gall-bladder. The third 

 seam arises in front of these, and passes to the left just above the 

 end of the cleft which separates the left central from the left 

 lateral lobe. On the under (abdominal) surface of the liver there 

 is a series of membranous seams visibly connected with ligaments 

 in the same way. 



The edge of the right lateral lobe of the liver is fixed down to 

 the diaphragm, just in front of the suprarenal body, by a sheet 

 of membrane which towards the median side slightly covers the 

 suprarenal body, and is attached to the postcaval vein. This 

 part of the ligament is of course the equivalent of the hepatocaval 

 membrane of other mammals. This membrane is continuous 

 with a semicircular seam which, as it were, cuts off a semicircular 

 piece from the lower part of the right lateral lobe of the liver. 

 On the median side {i. e., the left side) this seam gives ofi" a 

 branch which runs forward and to the left, and branches once or 

 twice on the caudate lobe. The latter lobe splits into two at its 

 connection with the entering postcaval vein, and it is here closely 

 adherent to that vein. It should be mentioned also that the 



* Loc. cit. p. 121. 



47* 



