The senses of hearing and smell are much developed, and the bulb of the ear (bulla tympani) is here found of the largest dimensions. I have once before alluded to this in writing of the bears, in whom this arrangement is deficient. I give here a section of the auditory apparatus. I do not know whether the engraver has effectually rendered my attempt at conveying an idea, based as it is on dissections by Professor Flower; but if he has failed I think the fault lies in the shakiness of my hand in attempting the fine shading after nearly breaking a saw and losing my temper over a very tough old skull which I divided before commencing my illustration. The great cavity is the bulla tympani or bulb of the ear; a m is the auditory meatus or external hole of the ear. On looking into a dry skull the passage seems to be of no great depth, nor can an instrument be passed directly from the outside into the great tympanic cavity, the hindrance being a wall of bone, s, the septum which divides the bulla into two distinct chambers, the reason for which is not very clear, except that one may suppose it to be in some measure for acoustic purposes, as all animals with this development are quick of hearing. The communication between the two chambers lies in a narrow slit over the septum, the Eustachian tube, e, being on the outside of the septum and between it and the tympanum or ear drum, t.

The above are the chief characteristics of the family. For the rest we may notice that they have but a rudimentary clavicle imbedded among the muscles; the limbs are comparatively short, but immensely muscular; the body lithe and active; the foot-fall noiseless; the tongue armed with rough papillæ, which enables them to rasp the flesh off bones, and their vision is adapted for both night and day.

None of them are gregarious, as in the case of dogs and wolves. One hears sometimes of a limited number of lions and tigers being seen together, but in most cases they belong to one family, of which the junior members have not been "turned off on their own hook" as yet.

[GENUS FELIS.]

[NO. 200. FELIS LEO.]
The Lion (Jerdon's No. 103).

NATIVE NAMES.—Sher-babbar, Singh, Unthia-bagh.

HABITAT.—Guzerat and Central India.

Felis leo (Indian variety).