ANATOMY OF THE LEMUROIDEA. 5 
It might be expected that the elongation of the pelvic limb, as compared with the pec- 
toral one, would proceed pari passu with this tarsal extension. Such, however, is not 
the case; for though in Ga/ago it is at its maximum, yet in Jndris the proportion of the 
pelvic limb to the pectoral one very much exceeds that which exists in Tarsius, as well 
when the terminal segments of the limbs are included in the estimate as when they are 
not so. 
On the other hand, if the pectoral limb with the manus be compared with the trunk, 
it is found to exceed the latter only in Loris, Tarsius, and Cheiromys; without the 
manus it does so only in Tarsius. 
A similar maximum of development of the pelvic limb as compared with the body is 
presented by the same genus, and this even when the pes is excluded from the 
estimate. 
2. The Head and Ears. 
With regard to the form of the head the Lemuroidea present great variations; and 
this is the case even with forms very closely allied. Our type (L. catta), like all the 
species of the genus, has the well-known elongated, almost fox-like, muzzle (woodcut, 
fig. 1). In Jndris, on the contrary, while the larger species (Z. diadema and J. brevi- 
caudatus) have a muzzle approaching in elongation that of Lemur, the smaller kinds 
(I. laniger and J. verreauaii) have the snout quite short and the head rounded, approxi- 
mating in this respect to Gralago (fig. 2) and Microcebus, which lead to the more square- 
visaged or short-snouted Cheiromys and Nycticebus (see fig. 3). 
It might be expected & priori that in a group the species of which differ notably in 
size, a similar difference in the relative proportions of cranium and face would be found 
to coexist. This at least is the case in the Cynopithecine' amongst the higher 
Primates, where examples show such concomitant variations. 
in the most playful manner hugged and tumbled about with them, rolling over and over, hanging on their tails, 
licking them on the head and face. I must add, however, that now and again he gave them a sharp bite, and 
then bounded off, full of fun at the noise they made in consequence of the sly nip he had inflicted. This active 
trickery he never appeared to tire of; and I was myself so pleased on witnessing the droll antics of the creature 
that the night passed and it was near daybreak before I put a stop to his frolics by catching and consigning 
him to his cage, In bounding about on the level ground, his jumps, on the hind legs only, are very astonishing, 
at least several feet at a spring, and with a rapidity that requires the utmost attention to follow, From the 
back of a chair he sprung, with the greatest ease, on to the table, four feet distance. He was delighted with a 
little wooden ball, which he rolled about and played with for a considerable time, carrying it on one hand while 
he hopped and skipped abont in high glee, 
«One more word, and that about food. It eats fruits, sweetmcats, bread, and any kind of animal substance, 
killing everything it can pounce upon and overpower. ‘This strong and active little brute thus eats its prey at 
onee, as I had proof in an unfortunate sparrow which it unmercifully devoured head first.” 
1 This subfamily including the genera Cercopithecus, Macacus, Inuus, and Cynocephalus (Proc. Zool. Soc. 
1865, p. 547). 
