18 Mamm. 
II. MAMMALIA. 
Pousargues, E. de. Contributions a l’Etude de l’Appareil Genital 
Male de l’Ecureil ( Sciurus vulgaris). C.R. Soc. Philom. 1893, No. 12, 
pp. 1-8. 
. Details Anatom iques sur l’Appareil Geuital Male du Cobaye. Ann. 
Sci. Nat. (7) xv, pp. 312-352, pi. ix. 
Purpus, 0. A. Die Bergziege, Aplocerus montanus. Zool. Garten, 
xxxiv, pp. 79-82. 
. Silvertip- und Cinnamon- Bar. T. c. pp. 113-117. 
. Beitrage zur Naturgeschichte von Mephitis occidentalis. T. c. 
pp. 134-137. 
. Neotoma cinerea , Baird. T. c. pp. 225-227. 
Quelcii, J. J. The Deer of British Guiana. Zoologist (3) xvii, p. 19. 
Radge, G. On the present range of the European Bison in the 
Caucasus. P. Zool. Soc. London, 1893, pp. 175-177. [Seep. 37, Bovidce.] 
Rhoads, S. N. Descriptions of Four New Rodents from California. 
Amer. Natural, xxvii, pp. 831-836. [See p. 31, Mur idee.] 
Riggio, G. Arenamento di Setto Capidogli (Phgseter macrocephalus , 
Linn.), nel Mare di Marsala, in Sicilia. Boll. Nat. xiii, pp. 2-5. 
The specimen referred to was stranded Nov. 25, 1892. 
Riviere, E. Determination par l'analyse chimique de la contempora- 
n6ite ou de la noncontemporan6ite des Ossements humains et des 
Ossemeuts d’Animaux trouv6s dans un meme gisement. C.R. Ass. 
Franc. 1892, pt. ii, pp. 378-382. 
Roculi:, G. Quelques Particularity Anatomiques d’un Foetus Terme 
d’Otarie ( Otaria stelleri). C.R. Soc. Philom. 1893, No. 8, pp. 2-4. 
ROSE, C. Ueber den Zahnbau und Zahnwechsel von Elephas indicus. 
Morphol. Arbeit, iii, pp. 173-194, pi. x. 
. Ueber die erste Anlage der Zahnleiste beim Menschen. Anat. 
Anz. viii, pp. 29-32. 
. Ueber die Zahnentwicklung des Menschen. Schweiz. Vierteljahr. 
Zahnheilk. ii, pp. 1-21 (1892). 
. Ueber die Zahnentwickelung von Phascolomys wombat. SB. Ak. 
Berlin, 1893, pp. 749-755, and MT. Ak. Berlin, 1893, pp. 449-455. 
In addition to the permanent pair, the presence of rudimentary incisors 
is indicated. 
. Ueber das Jacobson-Organ von Wombat und Opossum. Anat. 
Anz. viii, pp. 766-768. 
Romeii, F. Ueber den Bau und die Entwickelung des Panzers der 
Gurtelthiere. Jena. Zeitschr. (2) xxvii, pp. 515-558, pis. xxiv & xxv. 
Both llfctnidce and Dasypoelidce are regarded as the descendants of hair- 
covered Mammals, which acquired their exoskeletons independently 
when they took to a fossorial life. 
