722 DR. J. E. GRAY ON SPECIES OF RHINOCLEMMYS. _ [ Nov. 1, 
8. Notes on the Species of Rhinoclemmys in the British 
Museum. By J. E. Gray, F.R.S. &e. 
Having received two or three specimens of this genus, with the 
heads in a good state, I have been induced to compare the heads of 
all the species, as I believe that the colouring of this part affords 
good specific characters. I append a short description of the 
head of each species, and a figure showing the character of the 
markings. 

Rhinoclemmys melanosterna. 
RHINOCLEMMYS MELANOSTERNA. (Fig. 1.) 
Head black ; crown deep black, with a narrow, opaque, white 
streak from the nostrils over the eyes to the upper part of the tem- 
ples, a broad, pale, indistinct streak from the middle of the orbit to 
the front of the tympanum, and a small spot beneath it on the hind 
edge of the orbit. 

Rhinoclemmys scabra, 
RuaINOCLEMMYS SCABRA. (Fig. 2.) 
Head black above; a round white spot on each side of the nose 
in front of upper edge of the orbit, with a white diverging streak on 
each side of the crown, commencing even with the middle of the 
upper part of the orbit, and extending to the temple, and with a small 
white spot on each side of the occipital edge of the crown; temples 
with a white streak from the middle of the back edge of the orbit, 
another from the lower part of the back edge of the orbit, both 
extending towards the ear, with two or three small spots between 
them; a third larger streak from the underside of the orbit, which 
is forked behind, one branch ascending and the other descending to the 
edge of the lower jaw, and with a round spot behind the fork ; the 
chin white; the sides of the neck with numerous black and white 
streaks; the fore legs black, with a broad white streak down the 
