166 A Memoir on the living Asiatic Species of Rhinoceros. [No. 2, 
second black African species, the Rh. kej.tloa, A. Smith (long pre¬ 
viously indicated by Sir J. Barrow by the name Jekloa ), and a 
second white African Rhinoceros, the (Rh. Oswellii, Elliot),— 
besides the Rh. Crossii, Gray (founded on the horn only, and the 
habitat of which is unknown) ; and of Hippopotamus, the species 
of N. and S. Africa, respectively, are distinguished by Dr. Leidy and 
others (sinking II. senegalensis , auct., as a synon 3 T me of the form¬ 
er), arid there is also the H. or Chcrropsis libertensis, which is a 
most undoubted species, considered—as we have seen—entitled to 
generic rank by Dr. Leidy. Whether external differences exist between 
the great Hippopotami of N. and S. Africa, remains to be shewn; 
as also in the case of the European and American Beavers, which 
Owen separated on account of differences in the configuration of the 
skull: in another animal first so discriminated, the Phascalomys la- 
tifrons, Owen, good external distinctions have since been discover¬ 
ed, which characterize it well apart from the Ph. wombat. Of other 
Bachydermata of Cuvier, more Equi (of the Asinine type) have been 
added to the list; and several species of Swine. Among the Bovine 
ruminants, the three species of flat-horned Taurine cattle proper to 
S. E. Asia have only recently been properly distinguished ■* also the 
Bubalus braohyceros of intertropical Africa ; and there are others 
(as I believe) not yet sufficiently established, and more species also 
of large Deer and Antelopes. Among the Carnivora , no animal wor¬ 
thy of much note, unless Phocidce (as might have been expected) ; 
and ditto with Cetacea —my Balasnoptera ikdica for example 
(which is perhaps the largest of existing animals,—but these latter 
Prof. Owen, in his late minute— { On a National Museum of Natural History,* 
(which I have only seen since penning the above,) writing of this genus, re¬ 
marks—“ There is also a two-horned Rhinoceros in Sumatra ; and the Rhino¬ 
ceros of continental India is one-horned, as is that of the island of Java.” He 
would appear thus to consider the Rh. sonjdaicus and Rn. sumatkanus as 
exclusively insular species. He further adds that—“ The two-horned Rhinoceros of 
Sumatra offers, of all living Rhinoceroses, the nearest resemblance to certain 
fossil kinds found in Europe. When half-grown, this Rhinoceros retains a con¬ 
spicuous coat of short, straight, bristly hair. It is generally known that one, at 
least, of the extinct European Rhinoceroses [Rh. tichorhinus] was covered 
with hair when full-grown. * * * What I have said of the Rhinoceros applies 
to the Elephant. Bishop Heber’s first announcement of the young hairy Ele¬ 
phant which he met with in the Himalaya mountains excited much surprise. 
This character, transitional in the modern Elephant, was persistent in the 
Mammoth, or northern Europeo-Asiatio Elephant.” The Rhinoceros ticho- 
KHINUS, it may however be noticed, is stated to have had no skin-folds. 
* Dr. S. Muller unites the three in his description of Bos sondaiccts ! 
