282 CROCODILIDA. 
k, Ad., skull, W. coast of America, Sir E. Belcher [P.]. 
l,m, n,0,p. Ad. & yg., Mexico. 
stfid. & skins. 
q. Ad., skull. Mexico. 
o, Ad., stfid. Jamaica. 
Sita, VG ISpirs Jamaica. F. Beckford, Esq. [P.]. 
u-v. Yg., spir. Cuba. wept Macleay, Ksq. 
w. Her., stffd. Tropical America. Sir J. Richardson [P.]. 
vy. Yg., spir. Tropical America. J. Goodridge, Esq. | P. |. 
z,a,B,y. Her. & yg., P 
stffd, 
6. Ad., skel. —P 
e, ¢ Yeg., skulls. ——? 
5. Crocodilus siamensis. 
Crocodilus siamensis, Schneid. Hist. Amph. ii. p. 157 (1801) ; Giinth. 
Rept. Brit. Ind. p. 61, pl. viii. fig. B (1864); Strauch, Syn. 
Crocod. p. 50 (1866). 
galeatus, Cuv. Ann. Mus. x. p. 51, pl. i. fig. 9 (1807) ; Tiedem., 
Opp., § Lib. Nat, Amph. p. 76, pl. xi. (1817); Dum. & Bibr. iii. 
p- 115 (1836). 
vulgaris, Schleg. § Miill.in Temminck, Ver. Nat. Gesch. Neder. 
Ind., Rept. p. 28, pl. iii. fig. 9 (1844). 
Bombifrons siamensis, Gray, Ann. § Mag. N. H. (8) x. p. 269 
(1862). 
—— siamensis, part., Gray, Tr. Zool. Soc. vi. p. 144 (1867), and 
Cat. Sh. Rept. ii. p. 13 (1872). 
18 upper and 15 lower teeth on each side. Snout once and three 
fourths as long as broad at the base, rough but without any distinct 
ridges ; interorbital space broad, with a median longitudinal ridge 
(which, in the specimen figured by Cuvier, is developed into a strong 
crest followed by another on the occiput); mandibular symphysis 
extending to the fourth tooth; preemaxillo-maxillary suture, on the 
palate, directed backwards; premaxillaries narrowly separated 
above by the nasals. Four large nuchals forming a square, with a 
smaller one on each side; two pairs of smaller nuchals in a trans- 
verse series behind the occiput. Dorsal scutes well separated from 
the nuchals, in 16 transverse and four or six longitudinal rows, 
equally strongly keeled; one or two longitudinal series of smaller 
scutes in addition on each side. Fingers slightly, outer toes exten- 
sively webbed. A serrated fringe on the outer edge of the leg; 
scales on the limbs strongly keeled. Dark olive above, spotted with 
black. 
The half-grown specimen in the Collection measures 1 metre 
38 centim. 
Siam, Camboja, Java. 
a, Her., stfid. Camboja. M. Mouhot [C.]. 
