738 PROCEEDINGS OF THE NATIONAL MrSEVM. vol. xxx. 



published a more detailed account of the animal with lig'ures of the 

 skull and of an adult female. Certain peculiarities, probably arti- 

 ficial, of the type specimen were the source of much confusion in the 

 later literature. In 1868" Gray made this species the t3^pe of a new 

 subgenus, Eusus^ a name which he afterward'^ changed to Euhys^ even- 

 tually '■ raising the group to generic rank. Nothing more of special 

 importance was published until 1885, when Nehring recognized two 

 species among specimens from southern Borneo, a ''gigantic''' animal 

 which he considered the same as MiiUer's Sus harhatus^ and an animal 

 of less extraordinary size to which he applied the new name Su8 long'i- 

 rostris. '^ The distinctness of the two species he also clearly showed 

 in several later papers. ^ In 1894 a third generic name, Rhinosus, was 

 applied to the group.-^ Although not dealing specially with the Bor- 

 nean and Sumatran species, Dr. Forsyth Major's paper "On Sus ver- 

 rucosus Mlill, & Schleg. , and Allies, from the Eastern Archipelago"^ 

 contains some important data bearing on the distinctness of the two 

 Bornean forms. In 1902 I descriljed a Sumatran representative of 

 Sus harhatus^ the local form of Nehring\s smaller animal, as Sus oi.'^ 

 This well-characterized species, together with Neh ring's even more 

 conspicuousl}" differentiated Bornean form, were subsequentl}^ regarded 

 as identical with Sus hirhatus l)y Volz, in a very elaborate paper on 

 Sumatran pigs.' More recently, however, Dr. F. A. Jentink' has 

 recognized the distinctness of the three animals, and has pointed out 

 that much of the confusion has arisen from the fact that Nehring 

 wrongly identified as Sus l>ar^aius his larger animal. Doctor Jentink 

 suggests that this skull is that of "an unknown very large Borneo 

 pig," a conclusion at which I had arrived on seeing the specimen 

 nearly a year before. 



The members of this group are large animals, full-grown males 

 weighing 110 kg. or more; the body is high and very narrow, 

 scantily haired in the adult, the head greatly elongated, the cheeks 

 heavily bearded; about midway ))etween eye and nostril there is on 

 each side of the nuizzle a wart}^ outgrowth covered with stiff antrorse 

 bristles, large and conspicuous in males, less noticeable in females, 

 though never absent, even in the very young. Skull with rostral 



"Proc. Zool. Soc, Loudon, p. 32. 



''Catal. Carniv. Pachyderm, and Edentate Mamm., Brit. Mu.s., 1869, p. 339. 



'■Ann. and Mag. Nat. Hist.^ 4th ser., XI, p. 435, June, 1873. 



''Zool. Anzeiger, VIII, p. 347, June 15, 1885. 



''Sitz.-Ber. Gesellsch. naturforsch. Freunde zu Berhn, 1886, pp. 80-85; Abhandl. 

 u. Ber. zool. anthrop.-ethnogr. Mus., Dresden, 1888-1889, pp. 1-34; Sitz.-Ber. Ge- 

 sellsch. naturforsch. Freunde zu Berlin, 1889, p. 196. 



./■Heude, Mem. concernant I'llist. Nat. de I'Emp. Chinois, II, p. 213 (footnote). 



E/Ann. and Mag. Nat. Hist., 6th ser., XIX, pp. 521-542, May, 1897. 



/tProc. Biol. Soc. Washington, XV, p. 51, March 5, 1902. 



«Zool. JahrbCicher, Abth. Syst., XX, pp. 509-540, pi. xviu, July 16, 1904. 



./Notes from the Leyden Museum, XXVI, pp. 155-171, October 16, 1905. 



