KANGAROO-RATS I 37 



lias a single, not bifid, cul-de-sac, is sacculated by two principal 

 bands and other subsidiary ones. Its internal structure has 

 already been to some extent described. The spleen of B. hennetti 

 is remarkable for the fact that it is not T-shaped, whereas 

 D. inustus agrees with other -Macropodines in the form of this 

 organ. The small intestine of D. hennetti is 95 inches long, the 

 large 38. The caecum appears to differ in the two species ; it 

 is smaller in D. he/mietti, where it is only 2 inches in length. 

 The most remarkable feature of the liver is the large size of the 

 left lateral lobe and the bilobed condition of the Spigelian lobe ; 

 this at least was the case with D. hennetti. A recently-described 

 species ^ has been attentively studied in its native haunts by Dr. 

 Lumholtz."' It lives in the highest parts of the mountainous 

 scrubs of Queensland, where it moves quickly on the ground as 

 well as among the trees. It is hunted with Dingos by the 

 '' blacks," and is eaten by them.^ 



Lagostrophus is a generic name that has been proposed by 

 Mr. Thomas for a small Wallaby 18 inches in length, which is 

 distinguished by the fact that the long claws of the hind-liml)S 

 are entirely hidden by long and bristly hairs ; the mufHe is 

 naked ; there is no canine. The bullae are swollen. There is but 

 one species of the genus, L. fasciatus, a native of West 

 Australia. 



Sub-Fam. 2, Potoroinae. — Ae}jy2'>rymnus and the other 

 genera placed in this sub-family are known l3y the vernacular 

 name of Eat -Kangaroos, or sometimes Kangaroo -Eats. The 

 latter term has been called " incorrect," though it is just as 

 good as the former, both of them in fact l)eing inaccurate as 

 implying some likeness to or relation with a Eat. The present 

 genus has a partially hairy rhinarium ; the auditory bullae are 

 not swollen. It contains but one species, Ac. rvfescens, a native 

 of Eastern Australia, which is distinguished by its very long 

 hind-feet. 



Bettongia has long hind -feet as in Ae2)yprymnus, but the 

 rhinarivim is entirely naked instead of being partially hairy, 

 while the ears are much shorter. The genus, which contains 

 four species, is remarkable as being the only ground -living 

 mammal with a prehensile tail, which it uses to carry grass, etc. 



1 Proc. Zool. Soc. 1895, ]). 131. - Ibid. 1884, p. 387. 



•= Ibid. 1884, p. 407. 



