1. oRNiiHoaHrSfCHUs. 389 



Ann. Sci. Nat. ix. p. 451 (1826) ; id. Meckel's Arch. f. Nat. x. 



p. 14 (1827) ; Gray, Oriff. Cuv. An. K, iii. p. 265 (1827) ; Less. 



Man. Mamm. p. 319 (1827) ; J. S. Fisch. Syn. Mamm. p. 402 



(1829) ; Waffl. Syst. Amph. Saug. p. 59 (1830) ; Maule, P. Z. S. 



1832, p. 145 (habits) ; Benn. P. Z. S. 1834, p. 141 ; id. Tr. Z, 8. 



i. p. 229, pi. xxxiv. (animal) (1834) (habits) ; Kaup, Thierr. i. 



p. 251 (1835) ; Less. H. N. Mamm. (Compl. Buff.) v. p. 386, pi. liii. 



(animal) (1836); Waterh. Cat. Mamm. Mus. Z. S. p. 68 (1838) ^ 



id. Jard. Nat. lAhr., Mamm. xi. p. 309, pi. xxxiv. (animal) (1841) ; 



Qlog. Handb. Natiirg. i. p. 115 (1843) ; Less. N. Tahl. B. A., 



Mamm. p. 196 (1842) ; Wagn. Schr. Saug. Supp. iv. p. 262 (1844); 



Oieb. Odontogr. p. 62, pi. xxv. flgs. 4 & 8 (dental plates) (1855) ; 



id. Saug. p. 892 (1859) ; Q. F. Benn. P. Z. S. 1877, p. 161 (habits); 



Armit, J. Linn. Soc. xiv. p. 413 (1878). 

 Dermipua anatinus, Wiedem. Arch. Zool. i. pt. i. p. 180, pi. iii. 



(animal) (1800). 

 Ornithorhynchus rufus et fuscus. Per. §• Les. Voy. Terres Austr., Atl. 



pi. xxxiv. (animal) (1807) ; Tiedem. Zool. p. 589 (1808) ; III. 



Prodr. Syst. Mamm. p. 115 (1811) ; Leach, Nat. Misc. ii. p. 136, 



pi. cxi. (animal) (1816) ; Desm. N. Bict d'H. N. xxiv. p. 131 



(1818) ; Ooldf. Handb. Zool. p. 408 (1820) ; Schina, Cuv. Thierr. 



i. pp. 840 & 341 (1821) ; Besm. Mamm. ii. p. 880 (1822) ; Van 



der Hoeven, N. Act. Acad. I^eop. xi. p. 861, pi. xlvi. (animal, beak, 



&c.) (1823) ; F. Cuv. Bict. Sci. Nat. xxxvi. p. 443 (1825)-; Gray, 



Griff. Cuv. An. K. pp. 284 & 285 ; Schinz, Syn. Mamm. ii. p. 327 



(1845). 

 Ornithorhynchus brevirosti'ia, Ogilb. P. Z. S. 1831, p. 150 ; Schinz, 



Syn. Mamm. ii. p. 327 (1845). 

 Ornithorhynchus crispus et IsBvis, Macgilliway, Mem. Wern. Soc. vi. 



pp. 128 & 132 (1882). 

 Ornithorhynchus anatinus, Gray, List Mamm. B. M. p. 191 (1843) ; 



Waterh. N. H. Mamm. i. p. 25, pi. i. figs. 1-6 (beak, feet, &c.); 



Giinn, P. Roy. Soc, Tasm. ii. p. 89 (1852) ; Gould, Mamm. Austr. 



i. pi. i. (animal) (1856) ; Bennett, P. Z. S. 1859, p. 213, pi. Ixxi. 



(beak) ; Kreft, Cat. Mamm. Austr. Mus. p. 56 (1864) ; id. Vert. 



Lower Murray, p. 22 (1865) ; id. Mamm. Austr. pi. xv. (animal) 



(1871) ; Flow. $ Gars. Cat. Ost. Coll. Surg. ii. p. 753 (1884) ; 



Jent. Cat. Ost. Leyd. Mus. p. 325 (1887) ; Coll. Zool. Jahrb. ii. 



p. 940 (1887). 



Duck-billed PLAiTfPtrs. 



Male markedly larger than female. Fur of two sorts, the longer 

 fur crisp, shining, sometimes curly, the underfur short, soft and 

 ■woolly. General colour above deep umber-brown, sometimes redder, 

 and sometimes blacker. Leathery covering of bill black above, 

 yellow and black below. A spot round each eye white or yellowish. 

 Chin, chest, and beUy dirty greyish white, the hairs grey basally 

 and white terminally ; patches of dull chestnut, however, often 

 present on the chin, round the insertions of the limbs, in the anal 

 region, and along the posterior part of the centre of the belly. 

 Tail coloured above like the back, below generally naked in adults ; 

 but if hairy it is whiter than the rest of the animal. 



Other characters as described above. 



