12 MR. A. H. GARROD ON THE [Jan. 2, 
meus), Nannotragus (nigricaudatus), Tragelaphus (scriptus), Da- 
malis (albifrons), and Addax (naso-maculatus). According to Dr. 
Murie they exist in the Prongbuck and Saiga ; in Moschus according 
to Pallas, and in the Giraffe according to Prof. Owen’. 
In the uterus of the Cotyledontophora it is well known that there 
are papilliform developments of the inner walls which serve for the 
attachment of the cotyledons in the impregnated organ. Although 
it has not been actually proved, so far as 1 am aware, by direct 
evidence that the cotyledonary papille and the cotyledons are 
exactly the same in number in each individual, yet there is every 
reason to believe that it is so. On this assumption I take the 
number of these papillz as an index of the nature of the placenta 
itself, this being so difficult to obtain on account of the universal 
habit among the females to eat it immediately it is expelled, par- 
turition generally occurring at night-time. 
The following Table contains a statement of the number of 
papillz or cotyledons (as the case may have been) which I have 
found, together with those made by Prof. Turner on the same 
subject”. From it I feel justified in deducing the law that the 
cotyledons are few in the Cervidee, numerous in the Bovidee—at the 
same time that I would suggest the name OLIGOCOTYLEDONTO- 
pPHorA for the former, and PotycoTyLEDONTOPHORA for the 
latter. 









TaBLE II. 
ae Number of Number of 
a ee, Cotyledons. Papille. 
Cervus elaphus .........++- Turner & A. H. G. 12 or 8 ; 
—— duvaucelli............| TAS EONS. ae | Wee ote asee 4 in each cornu. 
CaMpestTis........+++-| brs 9, 8 large and 1 small. 
—— TUFUS ..ccececesencscees 5 dbatyeene 5 in one cornu, 4 in 
the other. 
Hydropotes inermis ...... . 2 foetus, with 3 coty- 
ledonsin one cornu 
and 5 in the other. 
Capreolus capred .....++-- Bischoff. 5 or 6. 
OUIS\OTICS wav scsmncoe=teeses Turner. 60 to 100. 
‘BOS QUGUS rons esaeeeeeer x 60 to 100. 
Damalis pygarga v.00. ACRE IG, | Ul eae Very many. 
Camelopardalis giraffa... Owen. 180 large and small. 
Rupicapra tragus .......+ A. H. G. As in Ovis. 4i 
Rangifer tarandus ...... Spec. No. 2755 in ieee DO 
| R. C. 8. Museum, 
and Catalogue de- 
| scription. 



Osteologically, among the Cervidze, the skull presents features 
which correspond in great measure with their geographical distribu- 
tion ; and, dentally, the peculiarities of the third lower premolar are 
The consideration of these latter I hope to be able 
most instructive. 
1 Trans. Zool. Soe. vol. ii. p. 240. 
2 Comp. Anat. of Placenta, 1875, p. 66. 

