SIWALIK AND NARBADA BUNODONT SUINA. 
17—51 
would be to compare all the type specimens. The most doubtful species are indicated 
by an asterisk. The living S. scrofa occurs in the Forest-bed of the Eastern 
Counties;^ and S. antiquus q^alceochoenis have been recorded from the Red Crag. 
1. Sus ANTIQUUS, Kaup.^ Up. miocene, Eppelsheim. 
A species frequently larger than 6”. erymanthius, and with relatively larger canines, 
and thicker lower premolars : pm. l is present in some instances. 
*2. Sus ARVERNENSis® (Cr. and Job.). Up. pliocene, France. 
Aper arvernensis, Cr. and Job. 
An imperfectly determined species, smaller than S. scrofa. 
*3. Sus CH^ROiDES,^ Pom. Up. miocene, Em’ope. 
■S', africanus {larvatus') .? Blain. } S. antediluvianus, Kaup {in parte). 
A species smaller than 6'. scrofa ; said to resemble 6'. africanus ; it is suggested by 
Gervais® that it may be the same as .S', antediluvianus^ or .S', palasochoerus : the former 
species as being an extremely uncertain one is provisionally included, although 
Kaup’s name has the priority. The last molars are relatively short. 
4. Sus CH^ROTHERiUM, Blain.^ Mid. miocene, France. 
S. (.^) doati, Lart. 6'. siniorrensis, Lart. {teste Gervais). 
A species varying in size, according to Gervais, from that of S. scrofa to .S', erymanthius : 
its canines are relatively large, and its molars approach those of Hyotherium. 
5. Sus ERYMANTHIUS,® Roth. and Wagn. Pikermi group. 
A species considerably larger than 6'. scrofa, with extremely small canines : pm. i 
generally absent in both jaws. 
*6. Sus LOCKHARTi,® Pom. Mid. miocene, France. 
6'. belsiacus, Gerv. 
An ill-defined species of about the same size as .S', palcoochoerus, with which its molars 
agree in general characters : these, according to Prof. Gaudry, approach those of 
Hyotherium. It is considered probable by Gervais^® that the so-called -S', belsiacus is 
the young of this species. 
*1 . Sus MAJOR," Gerv. Mt. Lebdron group. 
A species at least as large as S. erymanthius ; from which it is only distinguished by 
the absence of the protuberance over the upper canine : pm. i absent in both jaws : 
it is regarded by Prof. Gaudry as being probably merely a race of S', erymanthius. 
8. Sus PAL^OCHCERUS,^^ Kuup. Up. miocene, Eppelsheim. 
An imperfectly determined species, with which S. choeroides should possibly be united. 
The molars are smaller than those of S. scrofa : in the small talons of the last of 
the series, and in the stout premolars it approaches S. porcus. 
1 It should be observed that here and elsewhere the present writer follows Prof. Boyd-Dawkins Qmrt. Journ. 6eol. 
Soc.,' vol. XXXVI., p. 395) in regarding the Forest-hed as pleistocene. 
2 “ Beitrage,” pt. IV., pis. IV., V. “ Oss. Foss. d. Mus. d Darmstadt,” p. 8, pi. VIII. 
3 Blain ville, “ Osteographie,” Genus Sus, pi. IX. 4 /JjW, and Pom. , cited below. 5 “ Zool. etPal. Fran( 5 .,’’p. 180. 
6 This species was identified by Kaup (“Beitrage,” pt. IV., p. 12, pi. VI., figs. 4, 5) with Hyotherium mmmeringi-, 
and this identification is accepted in part by Peters : the lower Jaw figured by Kaup {op. cii.) is quite different from that of 
U. smmmeriugi figured by Peters (pm. i being small in the former and large in the latterj, and seems to belong to Hua. 
7 Op. cit. Chcerotherinm dupui, Lart., is identified by Gervais in one place {op. cit., p. 179) with this species, and in 
another (p. 185) with Ghoeromorus mammilaius. 
8 Gaudry, “ Animaux Foss, et Geol. de I’Attique,” p. 235, pis. XXXVII. -IX. 
9 Pomel, ‘ Bibl. univ. d. Geneve Archiv.,’ voL VIII., p. 159. 10 Op. cit., p. 180, pi. XXXIII., fig 7. 
11 Gaudry, “ Animaux Foss, du Mt. Leberon,” p. 42, pis. VII., VIII. 12 “Beitrage,” pt. IV., pi. VI. 
