MAMMALIA. 
13 
Mivart, St. G. On some points in tlie Anatomy of Echidna 
hystrioG. ' Trans. Linn. Soc. xxv. 18G6, pp. 379-403, with 
two plates. 
Mivart, St. G., and Murie, J. On the anatomy of the crested 
Agouti {Dasyprocta cristata, Desm.). Proc. Zool. Soc. 
1866, June 26, pp. 383-417, with woodcuts. 
Murie, J. Account of a case of malformation in the genera- 
tive organs of a cow. Proc. Zool. Soc. 1866, pp. 592-600, 
with a woodcut. 
Pettigrew, J. B. On the ganglia and nerves of the heart and 
their connexion with the cerchro-spinal and symi)athetic 
systems in Mammalia. Proc. Boy. Soc. Ediiib. v. pp. 452- 
457. 
Sander, J. Ueber Paserverlauf und Bedeutung der Commis- 
sura cerebri anterior bei den Sseugethieren. Reichert und 
Du Bois-R. Arch. Anat. Physiol. &c. 1866, pp. 750-756. 
[On the direction of the fibres in the Commissura cerebri an- 
terior j and their signification.] 
Seeley, H. G. Outline of a Theory of the Skull and the 
Skeleton ; being an epitome of a paper read before the 
Cambridge Philosophical Society, February 26, 1866. Ann. 
& Mag. Nat. Hist. 1866, xviii. pp. 345-362. • (See a note 
by Mr. Herbert Spencer, ibid. p. 494.) 
Turner, W. Notes more especially on the bridging Convolu- 
tions in the Brain of the Chimpanzee. Proc. Roy. Soc. 
Edinb. v. 1865-1866, pp. 578-587, with Avoodcuts, 
General Notes and Faunas. 
^ Prof. OwEN^s ^Anatomy of Vertebrates^ has been noticed 
above. The second volume contains the osteology of Mam- 
malia. The classification adopted is the same as that proposed 
in his treatise ^ On the Classification and Geographical Distri- 
bution of the Mammalia London, 1859. 
'^Prof. Lilljeborg states, in his memoir on the Rodents (p. 1), 
that about 2300 species of Mammalia are known, viz. about 700 
Rodents, 500 Chiroptera, 250 Ferce (inch Insect! vora) , 200 
Quadrumana, and about as many Artiodactyla, 
M. PucHERAN has continued his treatise on the capability of 
evidence furnished, or to be furnished, by geology to explain the 
differences bettveen the present faunas, in Rev. et Mag. Zool. 1866, 
and has not yet brought it to its conclusion (see Zool. Record, ii. 
pp. 10 & 58). As regards North America, he distinguishes be- 
tween an eastern and western fauna, both having been, perhaps, 
separated by the formerly deluged country of the Mississippi 
River. He maintains that the three continents of tlie Old 
