6 Mamm. 
MAMMALIA. 
Cornet, J. Note sur le Pretendu Proatlas des Mammif&res et de 
Hatteria punctata. . Bull. Ac. Belg. (3) xv, pp. 406-420, pi. 
Adduces arguments to show that the so-called proatlas is not a distinct 
vertebra, illustrations being given from a number of Mammals. 
Davis, J. R. A. A Text-Book of Biology, comprising Vegetable and 
Animal Morphology and Physiology. London: 8vo, 462 pp., 158 
illustrations. 
Pp. 318-360 are devoted to the Rabbit. 
Dawkins, W. B. [See Procyonidce.'] 
Debierre, C. Des Anomalies des Muscles Coexistantes et Corre- 
latives des Anomalies des Nerfs. C.R. Soc. Biol. (8) v, pp. 86-90. 
Records instances in various Mammals where these two features are 
associated. 
De Vis, C. W, [See Nototheriidce , Diprotodontidce , and Macropod idee.'] 
Dobson, G. E. [See Soricidce.] 
Dogiel, A. Ueber das Verhalten der nervosen Elemente in der Retina 
der Ganoiden, Reptilien, Vogel, und Saugetiere. Anat. Anz. iii, 
pp. 133-143, woodcuts. 
A portion of this paper is devoted to the nerves of the Mammalian 
retiua. 
Dollo, L. Sur le Proatlas. Zool. Jahrb. iii, Abth. f . Anat. pp. 433-446. 
In this memoir the author controverts the opinions of J. Cornet (supra) 
as to the non-existence of a proatlas in Manis and other Mammals, and 
supports the original view of Albrecht. 
Drew, J. Notes on a Difficulty in Evolution. P. Cottesw. Nat. F. C. 
1888, pp. 285-288. 
Argues that since Amphibia, Sauropsida , and Camelidai have elliptical 
blood-corpuscles, the most primitive Mammals ought to be Cameloids ; 
and as this is not the case, evolution is untrue. 
Durand, J. P. La Genese naturelle des Formes Animales. Rev. Sci. 
xli, pp. 741-752, woodcuts. 
Concludes that Terrestrial Mammals have for their immediate 
ancestors viviparous Enaliosaurs, the former existence of which has 
now been proved. 
Duval, M. Les Placentas Discoides en Gdndral, h, propos du Placenta 
des Rongeurs. C.R. Soc. Biol. (8) v, pp. 675 & 676. 
A preliminary note, partly discussing the question of the identity of 
the discoidal placenta of the Rodents with that of the Primates, in the 
course of which some observations are deduced from the study of 
Frommel’s plates of the placenta of Myotus (p. 35) ; and also treating 
of the homology and origin of the placenta generally, 
. Les Placentas Disooides, T. c. pp. 729-733. 
In this paper a letter from E, van Beneden is quoted, in which the 
latter confirms the views of the author as to the homology and origin of 
the placenta. 
