TtfNIODONTA, RODENT! A. 
Mamin. 27 
T2ENI0D0NTA. 
Cope, E. D. On the characters of the Tcenioclonta. Am. Nat. xvi. 
p. 72. 
The author divides this suborder into the Ectoganidce and the Calamo- 
dontidce , and discusses the characters of Esthonyx, Tillotherium , and Cala- 
modon. ' 
Ilemiganus vultuosus , g. & sp. nn„ E. D, Cope, Am. Nat. xvi. p. 831, 
New Mexico. Allied to Calamodon. 
RODENTIA. 
^ On the brain of Rodents ; see supra , W. B. Lewis, p. 10. 
^Ninni, A. P. Forme inedite o poco noto di Rosicante Veueti. Atti 
1st. Yenet. (5) viii. p. 571. 
Contains notes on some of the rarer rodents of Yenice. 
^Selenka, E. Keimblatter und^Gastrulaform der Maus. Biol. Centralbl. 
ii. p. 550. 
•VThomas, O. On a collection of Rodents from North Peru. P. Z. S. 
1882, p. 98. 
13 species are recorded, of most of which full descriptions are given. 
.3 are new to science. [See Maridce . ] 
4 . On a small collection of Rodents from South- Westorn Africa. 
P. Z. S. 1882, p. 265. 
10 species, of which 1 is new (see Muridcs). The collection was made 
by the late Mr. C. J. Andersson in Damara-land and the neighbouring 
countries. 
4 Virchow, H. Ueber die Gefasse der Chorioidea des Kaninchens. Verb. 
Phys. Med. Ges. Wurzb. xvi. p. 25. 
Contains a description, with figures, of the arteries and veins of the 
choroid coat of the eye of the Rabbit. 
SCIURIDTE. 
^ F. A. Jentink monographs the African members of this family (Notes 
Leyd. Mus. iv. p. 1). He reduces the number of allowable species to 19, 
of which 16 are referred to Sciurus, and 3 to Xerus. The specimens in 
all the principal museums in Europe have been examined, aud the 
rosults are tlioroforo proportionately trustworthy. Full descriptions aud 
synonymy aro given, with lists of the specimens preserved in the Leyden 
Museum. 
Trouessart, E. L. A translation of this author’s recent “ Revision of 
the Sciuridce ” {<f. Zool. Rec. xvii. Mamm. p. 22), is given by E. 
Coues, Bull. U. S. Gcol. Surv. vi. p. 301. 
