16 Mamm. 
MAMMALIA. 
the latter point to an original forking of the bony cores. In the 
Perissodactyla f Mesohippus is regarded as distinct from Anchitherium , 
which is made the type of a family. Among the Rhinocerotidce some 
observations are made on the foot-structure of Aceratherium, and on the 
homology of the component parts of the Rhinoceros molar. A restora- 
tion is given of the skeleton of one of those Upper Miocene Rhinoceroses 
described as Aphelops, and is shown to be remarkable for the length of 
the body and the shortness of the limbs, whereby it presents a marked 
contrast to the long-limbed Aceratherium of the Lower Miocene. The 
ordinal term Chalicotheroidea is adopted for Chalicotherium ; and Marsh’s 
Moropus is identified with that genus. 
Selenka, E. [See Primates.'] 
Selous, F. C. A Hunter’s Wanderings in Africa. 2nd Ed. London: 
1890, 8vo, 455 pp., illustrated. 
Sherborn, C. D. [See Woodward.] 
Sherrington, C. S. On outlying Nerve-cells in the Mammalian Spinal 
Chord. P. R. Soc. xlvii, pp. 144-146. [Abstract.] 
Siepi, P. [See Chiroptera.] 
Southwell, T. [See Cetacea.] 
Spee, F. G. Die Verschiebungsbahn des Unterkiefers am Schadel. 
Arch. Anat. Phys. 1890, pp. 285-294, pi. xvi. 
The relationship of the mandible to the cranium illustrated in a large 
number of Mammals. 
Spitzka, E. C. [See Pinnipedia.]. 
Steel, J. H. [See Equidce and Bovidce.] 
Steeric, J. B. A List of the Birds and Mammals collected by the 
Steere Expedition to the Philippines. Ann Arbour, Michigan, 8vo, 
30 pp. 
22 species of Mammals are recorded, of which a Bubaline and two 
Squirrels are described as new. [See Sciuridce and Bovidce.] 
Stephens, F. Land Mammals of San Diego County, California. West 
Am. Scientist, vii, pp. 36-39. 
62 species are mentioned. 
Sternberg, M. Ein bisher nicht beschriebener Canal im Keilbein des 
Menschen und mancher Saugethiere. Arch. Anat. Phys. 1890, pp. 
304-331, pi. xvii. 
Describes a canal in the alisphenoid, for which the name canalis cranio - 
pharyngeris lateralis is proposed. 
Straiil, H. Untersuchungen ueber den Bau der Placenta. Der Bau der 
Hundeplacenta. Arch. Anat. Phys. 1890, pp. 186-203, pis. ix & x. 
. Die histologischen Veriinderungen der Uterusepithelium in der 
Raubthierplacenta. Op. cit. suppl. pp. 120-134, pis. vi & vii. [See 
also Talpidce.] 
