20 
H. W. MARETT TIMs, 
that of a carnivore such as the dog; special differential staining might bring out 
unimportant differences in the minor details. It is impossible from the material at 
hand, there being no complete series, to determine whether the placenta is of the more 
“ plicate ” (Strahl) or the more “ cumulate” (Duval) type. 
In conclusion, may I once more tender my most grateful thanks to Professor 
Jeffrey Bell of the British Museum (Natural History) for having entrusted the material 
to me for examination and to Mr. R. Assheton for his kindly assistance in reporting on 
the structure of the placenta. 
BIBLIOGRAPHY. 
. AssHreton, R.—“The morphology of the Ungulate placenta, particularly the development of that 
organ in the Sheep and notes upon the placenta of the Elephant and Hyrax.” Phil. Trans., 
vol. 198 B (1905), pp. 143-220. 
. BaRRETT-Haminron, G. E. H.—* Seals.” Résultats du voyage du ‘S.Y. Belgica’ en 1897-1898-1899 
(1901), pp. 8-19. 
Bepparp, F. E.—“On the structure of Hooker's Sea-lion (Arctocephalus Hookert).” Trans. Zool. 
Soc. Lond. (1887), pp. 869-380. 
Howzs, G. B.—On some points in the anatomy of the Porpoise (Phocena communis).” Journ. 
Anat, and Phys. xiv. (1879), pp. 467-474. 
. Howes, G. B.—‘ Rabbit with an Intra-narial Epiglottis, with a suggestion concerning the phylogeny 
of the mammalian respiratory apparatus.” Journ. Anat. and Phys. xxiii. (1889), pp. 268-272. 
. Howes, G. B.—* Additional observations upon the Intra-narial Epiglottis.” Tom. cit., pp. 587-598. 
Lxpouce, H.—*Organogénie des Pinnipédes. I. Les extrémités.” Résultats du voyage du 
‘§.Y; Belgica’ en 1897-1898-1899 ” (1904), pp. 3-17. 
Mivart, Sr. G.—‘ Notes on the Pinnipedia.” Proc. Zool. Soc. Lond. (1885), pp. 484-501. 
. Murte, J.—‘‘ Researches on the anatomy of the Pinnipedia.” Pt. I. “On the Walrus (Trichechus 
rosmarus).” Trans. Zool. Soc. Lond. vii. (1870), pp. 411-464. Pt. II. “ Descriptive Anatomy of 
the Sea-lion (Otaria jubata).” Tom. cit., pp. 527-526. Pt. III. Op. cit. viii. (1870), pp. 501-582. 
. Turner, W.—“On the placentation of the Seals.” Trans. Roy. Soc. Edin. xxvii. (1876), 
pp. 275-804. 
Turner, W.—Seals.” Reports of the Scientific results of the voyagé of ‘H.M.S. Challenger’ (1888), 
vol, xxvi. pt. 68. 
. WaLperrerR, W.—“ Beitriige zur normalen und vergleichenden Anatomie des Pharynx mit besonderer 
Beziehang auf den Schlingweg.”  Sitzungsb. der Kénig. Preuss. Akad. Berlin (1886), 
pp. 2383-250. 7 
. Winson, E.—Appendix to “The Voyage of the ‘Discovery,’” London (1905), 2 vols., by Captain 
R. F. Scott, R.N. 
. Winpuu, B. C. A., and Parsons, F.G.—* On the myology of the terrestrial Carnivora.” Proc. 
Zool. Soc. Lond. (1897), pp. 370-409 ; (1898), pp. 152-186. 
