The British Guiana Museum. 219 
smaller ones. In this species the spots are distinflly 
lined or chained, and, behind the shoulder, the lines run 
obliquely down the sides ; while a large white spot is 
present on the back of the ears. The jaguarondi 
or hacka-tiger is quite a small one, but shows 
the unspotted whitish black colour of the species ; 
the hacka (Galictis barbara) with its large white 
diamond-shaped patch on the throat ;. the kinkajou or 
potto (Cercoleptes caudivolvulus) closely resembling the 
night-monkey in size, appearance and habits, but dis- 
tinguished at once by its six incisor teeth and by its 
claws ; the grison (Grisonia vittata) with its rare 
colouring, dark below and light above ; the otters or 
waterdogs of which there are three kinds in the colony ; 
the coatis or quassies (Nasua sp,) with their very 
long snouts ; and the colonial fox, etc., are all repre- 
sented. 
Of the waterhaas group— the gnawing animals or Ro- 
dentia, distinguished by the teeth, two incisors above and 
two below, but no canines — there are exhibited speci- 
mens of the aguti and adourie (Dasyprocta sp.J, of the 
spiny or porcupine-rat (Echimys sp.) with stiff and flat 
hairs, of the tree-porcupine (Cercolabes prehensilis) of 
arboreal habits and with prehensile tail, and of the 
squirrel (Sciurus destuans) etc. 
Of the order of the bats (Cheiroptera) or hand- winged 
animals, one or two small forms are shewn in the case, 
while a specimen of the largest South American bat, the 
vampire (Vampyrus spectrum) is to be seen suspended 
on the other side of the room. This form which attains a 
width of more than two feet across the extended wings, 
was formerly erroneously supposed to be a blood-sucking 
