8 Mamm . 
MAMMALIA. 
Dames, W. Ueber eine tertiare Wirbelthierfauna von der westlichen 
Insel des Birket-el-Qurun im Fajum (Egypt). SB. Ak. Berl. 1883, 
p. 129. 
[See Zeuglodontidce.] 
. [See also Bovidce.] 
Dawson, J. W. [See Balccnidce.] 
Decker, F. Ueber den Primordialschadel einiger Saugethiere. Z. wiss. 
Zool. xxxviii. pp. 190-233, pi. ix. 
The author traces the early development of the skull in the ox, sheep, 
pig, cat, armadillo, bear, seal, and pangolin, and discusses the vertebral 
theory of the skull from a developmental point of view. 
DepjSret, — . [See Artiodactyla.] 
De Yis, C. W. [See Marsupialia , Macropodidce , Belideus gracilis , sp. n. 
( Phalangistidce ).] 
Diesing, R. Beitrage zur Kenntniss der Haarbalgmuskeln. Beitr. 
Morphol. Morphog. i. p. 50. 
Worked out in the human subject. 
Dobson, G. E. A Monograph of the Insectivora , Systematic and 
Anatomical. Part n. London : 1883, 4to. 
[See Insectivora , infrA, p. 33.] 
Doederlein, D. [See Leporidce.] 
Dollo, M. L. On the Malleus of the Lacertilia , and the Malar and 
Quadrate Bones of Mammalia. Q. J. Micr. Sci. xxiii. pp. 579-596, 
pi. xli. 
The author believes (1) that he has discovered in the Lacertilia a true 
malleus homologous with that of Mammals, and that therefore the 
Mammalian malleus cannot be, as is commonly thought, the homologue 
of the quadrate of the lower vertebrates ; (2) that the zygomatic portion 
of the squamosal of the Mammalia is the true homologue of the quadrate ; 
and (3) that morphologically the Mammalian malar equals the post- 
frontal jugal and quadra to-jugal of the lower vertebrates combined. 
[See also Albrecht, P., supra.'] 
DuGiJS, A. Observations on Four Mules in Milk. P. U. S. Nat. Mus. v. 
p. 223 [1882 : translated from Duges’s French version of a Spanish 
note in the Mexican publication ‘El Repertorio,’ No. xvii. 1876].^ 
The milk obtained from virgin mules was analysed and found to be 
identical with ordinary mare’s milk. 
Duns, — . On the Zoology of Mid-Lochaber. P. Pliys. Soc. Edinb. vii. 
pt. i. p. 156. 
A list of Mammals is given. 
Eiciibaum, F. [See Equidce.] 
Eimer, T. Ueber die Zeichnung der Yogel und Saugethiere. JH. 
Yer. Wurtt. xxxix. p. 56, and Zool. Anz. v. p. 685, & vi. p. 690. 
The author discusses the arrangement of the markings on Mammals 
and Birds, and comes to the conclusion that their evolution consists of 
