480 Zoological Society :— 
both upper and lower lips of a very smooth semi-mucomembranous 
texture, corrugated and tuberculated at the margins ; the upper lip 
with a tuberculated prominence in the line of the two outer incisors, 
and a more elongated tuberculated ridge further up, in the line of 
the two inner incisors; the external lateral margin expanded into a 
sort of stiff semi-cupshaped flap with a tuberculated edge, rising to 
meet the nostril and then descending, following its lower edge, and 
terminating in a curved scroll-like coil in the nostril. 
The same semi-mucomembranous lip is spread over the front 
of the lower jaw, forming a sort of chin. The skin in the neigh- 
_ bourhood of the lips, and extending upwards and backwards along 
the nasal bones, is covered with the same sort of fine velvety down 
which surrounds a horse’s nostrils ; the hair on the rest of the head 
is flocky ; on the downy portion there are on the sides of the upper 
lip three rows of papillee, each with a long whisker-hair springing from 
it. In the specimen before us these papillee are arranged four in 
the two first rows and three in the last; similar papillee and hairs 
run up the downy space covering the long nasal bones, in three rows, 
past the eyes and quite to the forehead, numbering each nine or 
ten papillee, the middle row being shorter than the two others. The 
gape of the mouth is large, extending back fully a third of the head ; 
the lip does not encroach on the outside of the face along the gape ; 
it is only directly in front that it is so much developed ; the upper 
lip is connected with the gum by a broad thick ridge uniting them 
together in the line of the symphysis of the intermaxillary bones. 
The disposition of the teeth is as follows :— 
They are all well separated from each other, none touching each 
other except, perhaps, the last molars ; the incisors of the upper jaw 
are minute rounded points ; in the lower jaw they are equally minute, 
but transversely oblong and bilobed. The canine teeth in both are 
well developed and of the usual form; beyond the canine there is 
a minute tooth (a mere point) in the lower jaw which is wanting in 
the upper jaw; the next tooth beyond it is almost exactly of the form 
of the canine, and is probably a pre-molar ; the remaining teeth, two 
in the upper and three in the lower jaw (probably true molars), have 
their crown divided longitudinally; in the upper jaw each ridge slopes 
backwards, in the under jaw the external ridge is bilobed. The 
palate has strong, elevated, transverse ridges running across from 
interspace to interspace between each tooth. The tongue is rather 
large, and covered with a sort of tessellated pavement of large flat 
papillee ; it is free very far back. Under it and lying in the hollow of 
the mouth, occupying the whole breadth for a short space in front 
between the rami of the lower jaw, is a very curious membrane fringed 
with slips or plaits—a sort of second tongue, calling to recollection 
a somewhat similar organ or structure under the tongue of the Loris 
and Lemur. In these it assumes the form of an aponeurotic lamina, 
which is divided at its anterior thinner end into filaments or slips. 
«This arrangement (a development of the freenum of the Haute 5 
says Van der Hoeven, ‘‘ has been described incorrectly, in my judg- 
ment, as though the tongue were double, or even as if a bird’s tongue 
