1. MACKOPtrs. 15 



Group I. KANGAROOS. 



The members of the first group agree among themselves by their 

 large size, somewhat uniform and dull coloration as compared with 

 that of the more brightly marked and variegated "Wallabies, and by 

 their large heavy skulls, in which, as is usual in the larger as com- 

 pared with the smaller members of any group, the facial portion is 

 increased at a far greater ratio than the cranial, whence their high 

 facial indices (see Table). Their palates are, for the most part, much 

 more complete posteriorly than those of the Wallabies, and their 

 molars differ in the frequent development of the anterior central 

 connecting ridge, almost or quite obsolete in the Wallabies, and the 

 general suppression of the antero-external ridge present in those 

 animals. These latter points are, however, by no means constant. 



1. Macropus giganteus *. 

 a. Macropus giganteus, Tar. typicus. 



Kangaroo, Cooh, Hawkesw. Voy. (4to) iii. pp. 157& 17S, pi. xx. Canimal) 

 (1773) ; Phillip, Voy. Hot. Bay, pp. 106 & 168, pla. x. & xxx. (animal 

 and skuU) (1789) ; WTiUe, Journ. Voy. N.S. W. p. 272 (1790). 



Yerboa gigantea, Zimm. Spec. Zool. Geogr. p. 526 (1777). 



Jaculus giganteus, Erxl. Syst. Regn. An. p. 409 (1777) ; Blumenh. 

 Handb. Naturg. p. 88 (1779). 



Didelphys gigantea, Sohreb. Siiug. iii. p. 652, pi. cliv. (1778) ; Omel. 

 Linn. S. N. i. p. 109 (1788) ; DonTid. Zool. Beytr. i. p. 354 (1792) ; 

 Kerr, Linn. An. K. p. 197 (1792) ; Meyei; Syst. Uebers. Zool. Entd. 

 p. 13 (1793) ; G. Ouv. Tabl. EUm. p. 126 (1798) ; Geoff. Ann. Mm. 

 i. p. 178 (1802) ; Besm. N. Diet. dUl. N. xii. p. 355 (1803) ; Blumenh. 

 Man. d'Hist. Nat. i. p. 109 (1803) ; G. Fisch. Anat. Maid, p. 189, 

 pi. xix. (skull) (1804) ; Turt. Linn. S. N. i. p. 67 (1806). 



Didelphis kenguru, Zimm. Geogr. Gesch. ii. p. 231 (1780). 



Didelphys kanguro, Bodd. Blench. An. i. p. 78 (1785). 



Macropus giganteus, Shaio, Nat. Misc. i. pi. xxxiii. (1700) ; Pander 

 8f ly Alton, Vergl. Osteol., Beutelth. pis. i. & vii. (skull and skeleton) 

 (1828) ; Fisch. Syn. Mamm. p. 281 (1829) ; F. Cuv. H. N. Mamni. 

 (fol.) iii.livr.lv. (1829) ; Less. S. N. Mamm. (Compl.Buf.) v.p. 377 

 (1836); Waterh.Cat.Mamm.Mus.Zool.Soc.Tf.m(W3S); id.Jard. 

 Nat. Libr., Mamm. xi. p. 192 (1841) ; Less. N. Tabl. B. A. Mamm. 

 p. 193 (1842) ; Waterh. N. H. Mamm. i. p. 62, pi. iii. figs. 3-5, 

 and V. figs. 1 & 2 (teeth) (1846) ; Besm. Diet. Univ. d'H. N. vii. 

 p. 170 (1849) ; Gunn, P. Roy. Soc. Tasm. ii. p. 88 (1852) ; Gerv. 

 Hist. Nat. Mamm. ii. p. 270, pi. xlv. (1855) ; CHebel, Odontogr. p. 43, 

 pi. xix. fig. 14, «, b (incisors) (1855) ; Schleg. Bierk. p. 142 (1857) ; 

 Gi^. Sdvg. p. 672 (1859) ; id. Thierr. i. p. 235, figs. 397-400 

 (1859) ; Blyth, Cat. Mamm. Mus. As. Soc. p. 183 (1863) ; Schafer 



' a. Size larger. Hind foot of male more than 

 300 millim. 

 a'. Fur shorter and paler. Hab. Australia ... a. Var. typicus. 

 b'. Fur longer and darter. Hab. Tasmania., b. Ya.r. fitliginosus, 

 b. Size smaller. Hind foot of male less than [p. 19. 



300 millim. e. Ya,r. melanops, p. 26. 



