50 
MACROPODIDiE; or Kangaroo Family. 
. 6 . 0 l—l 1—1 
Dentition .—Incisors, canines, -, or—; premolars,—; molars, 
— = 28 or 30 1 2 * * . 
4—4 
Head elongated, the muzzle contracted; upper lip cleft; muffle 5 
clothed with small hairs, or naked. Distinct eye-lashes 
springing from the eye-lid, as in man, in nearly all the 
species. 
Clavicles slender and weak, especially in the large species of 
Macropus proper. 
Fore limbs smaller than the hind— usually very small in propor¬ 
tion ; the hands naked beneath, and having five well-developed 
fingers ; each finger armed with a strong curved claw. 
Hind leys large and powerful: the foot long; toes four in number, 
the inner, or first toe, being absent ; the second and third toes 
long, but extremely slender, and united in one common inte¬ 
gument, so as to have the appearance of a single slender toe 
with a double nail; the nails are distinct, oblong, and hollow 
1 The above is the usual and most simple method of expressing the number 
of teeth of different kinds : by incisors is meant there are six in the upper 
jaw, and two in the lower, and that they form a continuous series, or touch 
each other in either jaw; were they separated by a distinct interspace in the 
upper, and also in the lower jaw (as it sometimes happens), tills would hire 
been expressed thus, like the molar teeth, i. e. four on each ride of 
each jaw. When we speak of 44 the three molars, 0 or “ the three premolar?/' 
it must be understood we mean the three molars, or the three premohrs, ou 
either side of the upper or under jaw, as the case may be; in all cases such 
expressions (where not otherwise mentioned) will refer to one series: that L«, 
upon the supposition that we view the whole of the teeth of an animal as 
forming four series—a series on the right side of the upper jaw and auotheron 
the left, and the same in the lower. 
2 The French naturalists use the word 44 muffle” for that part at the end of 
the nose which is naked in the Ox, Dog, 6cc ,; where the same part is covered 
by hairs, as in the Rabbit, the animal is said to have no muffle. The term will 
be used to designate the corresponding part of the nose, whether hairy or not, 
in this work ; for there arc intermediate conditions, and it will lie convenient 
to have some definite term for the part in question. 
