26 Mctmm. 
MAMMALIA. 
282. Schmidt, M. Das Walross (Trichechus rosmarus). Zool. Gart. xxvi. 
pp. 1-16, 33-40, & 65-73, pi. i. 
On the habits of the living animal in captivity. 
283. Schmidt, O. The Mammalia in their Relation to Primeval Times. 
London : 1885, 8vo, 308 pp. 
Translation of the German original. [Cf. Zool. Rec. xxi. Mamm. p. 28.] 
284. -. Berichtigungen zu Oscar Schmidt, die Saugethiere, etc. 
Zool. Anz. viii. pp. 562 & 563. 
Corrections to the above work. 
285. Sclater, P. L. Description of a New Species of Mnntjac. P. Z. S. 
1885, pp. 1 & 2, pi. i. 
Description of Cervulus crinifrons , from Ningpo, China. 
286. -. Note on Lemur macaco , and on the way in which it carries its 
young. T. c. pp. 672 & 673. 
The young Lemur is carried transversely across its mother’s belly, 
and, passing its long tail round her back, curls it round its own neck. 
287. -. Exhibition of, and Remarks upon, a Skull of an American 
Tapir. T. c. p. 718. 
The Tapir in question was not Tapirus roulini, as it had been described 
and figured (P. Z. S. 1878, p. 632), but, as was evident now that the 
skull could be examined, merely a dark variety of T. americanus. 
288. Scott, W. B. Cervalces americanus , a Fossil Moose, or Elk, 
from the Quarternary of New Jersey. P. Ac. Philad. 1885, 
pp. 181-202, pi. ii. 
The author forms a new genus for this species, formerly Cervus 
americanus , in consequence of the discovery of an almost complete 
skeleton. 
289. -. A Fossil Elk, or Moose, from the Quarternary of New Jersey. 
Science, v. pp. 420-422. 
Is identical with a species called Cervus americanus by Harlan in 1825; 
but it must be put in a new genus. Cervalces is the name proposed for it. 
290. Selenka, E. Ueber die Entwicklung des Opossum (Didelphys 
virginiana). Biol. Centralbl. v. pp. 294 & 295. 
Some preliminary facts about the development of Marsupials. Fertili¬ 
zation of the ovum takes place at the lower end of the oviduct; the 
period of gestation is only eight days ; the segmentation is intermediate 
between holoblastic and meroblastic. 
291. Severin, — . Untersuchungen fiber das Mundepithel bei Siiuge- 
thieren. Arch. mikr. Anat. xxvi. pp. 81-88, pi. v. 
292. Sharp, B. Homologies of the Vertebrate Crystalline Lens. 
P. Ac. Philad. 1884, pp. 300-310. 
The author traces the gradual evolution of the eye upwards from the 
simple mantle eyes of Ostrcea and other Lamellibranchs. 
