46 Mamm. 
MAMMALIA. 
CM . f^H^ROPOTAMIDJ]. 
■fElotherium arctatum, n. sp., E. D. Cope, Am. Nat. xxiii, p. 629 (1890), 
White River Miocene, Canada. Described by Cope, Contr, Canad, Pal. 
iii ( suprd , p. 6), p. 20. 
lb. StJJDAC. 
Jentink, F. A. On the Malayan and Papuan Pigs in the Leyden 
Museum. Notes Leyd. Mus. xiii, pp. 85-104. 
These notes refer to Sus vittutus , S. verrucosus , S. barbatus , S. timori - 
ensis, S. celebensis, 8. papuensis, and S. niger , of which the museum 
contains several of the lypes, It is suggested that S, longirostris, 
Nehring, is founded upon old skulls of S. barbatus. It is considered that 
S. niger is the same as S. ceramensis, although the former name is pro- 
visionally adopted. 
Keifel, F. Ueber die Entwickelungsgesehichte des Schweines. Anat. 
Anz. vi, pp. 193-398, figs. 
A notice of the earliest stages of the development of the Pig. The 
observations recorded serve to confirm the view that the entoblast of 
Mammals is not homologous with that of the lower vertebrates. 
Njeiiring, A. Die Rassen des Schweines. In Rohde’s Schweine?ucht, 
Berlin : 1891, 8vo, 38 pp., 2 pis. 
The author classifies the existing Swine as follows.:— 
I. Sus. 
1. Sus scro/a ferus, 
2. Sus indicus ferus. 
3. Sus leucomystax. 
4. Sus barbatus. 
5. Sus longirostris. 
6. Sus verrucosus. 
II. POTAMOCHCERUS. 
1. Potamochcerus larvatus. 
2. Potamochcerus penicillatus. 
III. Phacochcerus. 
1. Phacochcerus celiani. 
2. Phacochcerus pallasi. 
IY. Babirusa. 
Babirusa alfurus. 
V. Porcula. 
Porcula salvania. 
YI. Dicotyles. 
1. Dicotyles labiatus. 
2. Dicotyles torquatus. 
In Zoo'l. Anz. xiv, pp. 457-459, Neiiring has notes on the Wild Pig of 
Mindoro, in the Philippines. This form, together with one from Luzon, 
