58 7 
E.macro-| E. fran- | E. gam- 
cephalus. queti. bianus. | E. schoénsis. 
in. limes. | in. lines. | in. lines in. lines. 
Length from the extremity of the nasal 
bones to the occipital crest .........)) .seeee o: Bea i some ‘beg 
Length from extremity of nasal bones 
to the front of orbit ..............+4.- DeryOr 4008 9 Dao 0 33 
Length from extremity of nasal bones 
to the supra-orbital foramen ......... Be OMT dense! Lael 0 52 
Length of the nasal bones ............... et ihe haggis ioe 0, 9 0 3 
Length of the zygomatic arches, taken 
from the ant-orbital foramen to the 
hinder margin of the condyloid fossa) 1 0 | 0 10 | 0 10 0 52 
Breadth across the zygomatic arches... 1 0 | 1 2 |90 Il 0 7 
Breadth taken between the points of P 
the supra-orbital processes............ We sae Ole nO aod 0 43 
Length of the bony palate............... | til Nis esa tidly (dy hc 0 53 
Length from the point of the canine to 
the posterior molar........ss0e-.eeeeees 0 9/0 82|)0 8 0 4 
Breadth between the two posterior 
MONATS oo ac aehanervas «Upon eeneTtsancemdas lle Ere (ie ;O0 4% Us 
Breadth between the points of the 
CANINES 9. 55S sc8 SS. els Ree Coote Ol SEA 20s pO Ss 1MOet 2 
Entire length of the lower maxilla ....| 1 11$)/1 7 |1 7 0 9% 
Height at the coronoid ... ........+0-.. 0 9/0 7/9 7 0 3 
Length from point of canine to poste- 
OSE neal let Ee a o'tes a “91S” See 
2. DescripTIoNn or A New Species oF Opossum, OBTAINED BY 
Mr. Fraser 1In EcuApor. By Rosert F. Tomes. 
(Mammalia, Pl. LX XVI.) 
DIDELPHYS WATERHOUSII, 0. 8. 
Fur rather long, soft, and of a cotton-like texture ; general colour 
dark brownish-grey, tipped with rufous on the sides ; under parts 
brownish-buff, with a stripe of yellowish-white along the centre of 
the throat and breast. -A black mark through the eye, to near the 
end of the nose. t 
Mufile of a broadly ovoid form, more deep than wide, the oval figure 
truncated at the bottom, where the upper lip constitutes its base ; 
notch of the upper lip, occasioned by the mesial groove of the muffle, 
deep ; on either side of it, in the edge of the lip, a double cleft. A 
horizontal depression passing through the centre of the muffle, serves, 
with the vertical groove, to divide it into four divisions or quarters, 
of which the two upper ones have a somewhat discoid form, and 
project laterally over the nostrils, partially hiding them. The two 
lower ones are marked, each with two oblique shallow depressions, 
passing from near the centre of the muffle to its outer margins, near 
the base. 
Ears broadly ovoid, hairy on their hinder surface, at the base only, 
and of a dark brown colour, tinged with yellow at the auditory open- 
ing. Feet of a pale fleshy-brown colour, suffused with exceedingly 
fine short hairs, scarcely visible to the naked eye, but becoming 
a 
