9. DAMONIA. 95 
from the loreal region to the angle of the mouth; two or four 
vertical yellow streaks below the nostrils; a V- or Y-shaped 
yellow marking on each side of the mandible ; sides of neck with 
yellow streaks. 
Length of shell 20 centim. 
Siam, Camboja, Java. 
a, b. Hegr., stffd. Siam. M. Mouhot [C.]. (Types of G. 
macrocephala.) 
Cy Yio. any. Siam. M. Mouhot [C.]. 
d, Xe. shell: Siam. M. Mouhot [C. }. 
e. Yg., spir. Siam. W. H. Newman, Esq. [P. ]. 
fg. 2 & yg., stffd. Camboja. M. Mouhot [C.]. 
hk. Ye, shell. Camboja. 
v1. 6, stiid. Batavia. (Type of D. oblonga.) 
k. Yg., spir. Batavia. Dr. Bleeker. (As Cistudo gibbosa.) 
l. Yo., spir. p 
m. 2, skel.* P (Specimen mentioned by Gray as 
Emys subtrijuga.) 
5) 
n,o. 2 & her., skel. 
3. Damonia reevesii. 
Emys reevesii, Gray, Syn. Rept. p. 73 (1851); Dum. & Bibr. ii. 
p- 313 (1835); Gray, Cat. Tort. p. 18 (1844); Giinth. Rept. Brit. 
Ind. p. 29 (1864) ; Riitimeyer, Verh. Naturf. Ges. Basel, vi. p. 48 
(1873). 
vulgaris picta, Schleg. Abbild. p. 127, pl. xli. (1844). 
japonica, A. Dum. Cat. Méth. Rept. p. 8 (1851), and Arch. 
Mus. vi. p. 220 (1852). 
Geoclemmys reevesii, Gray, Cat. Sh. Rept. i. p. 18, pl. vy. (1855). 
Clemmys reevesii, Strauch, Chelon. Stud. p. 104 (1862). : 
Damonia reevesii, Gray, Proc. Zool. Soc. 1869, p. 194, and Suppl. 
Cat. Sh. Rept. i. p. 44 (1870), and Ann. § Mag. N. H. (4) xi. 
p- 148 (1873). 
Carapace depressed, tricarinate, posterior border not serrated ; 
nuchal small, posterior border usually notched; vertebrals 2 to 4 
broader than long, a little narrower than the costals. Plastron 
large, flat in both sexes, angulated laterally, posterior lobe narrower 
than the opening of the shell (especially in the male), nearly as long 
as the bridge is wide, deeply notched posteriorly; the abdominal 
shields form the longest median suture; the suture between the 
gulars longer than that between the humerals; axillary and inguinal 
shields present. Head rather large; snout projecting ; upper jaw 
scarcely emarginate mesially ; the width of the mandible at the 
symphysis is a little less than the horizontal diameter of the orbit ; 
four large shields on the head—one round the upper jaw, one 
covering the snout and the crown, and one on each side between 
the eye and the ear. Digits webbed to the claws. Tail one third 
to half the length of the shell. Carapace brown; plastron yellowish, 
each shield with a large dark brown blotch, or dark brown with the 
* The skull attached to this specimen belongs to Nicoria trijuga! 
