Sir E. Belcher [P.]. 



F. Beckford, Esq. [P.]. 

 W. S. Macleay, Esq. 



[P.]. _ 

 Sir J. Richardson [P.]. 

 J. Goodridge,Esq.i;P.]. 



o. Crocodilus siamensis. 



Crocodilus siamensis, Schneid. Hist. Amph. ii. p. 157 (1801) ; Giinth. 



Ropt. Brit. Ind. p. 01, pi. viii. fig. B (1864); Straueh, Syn. 



Crocod. p. 50 (1866). 

 galeatus, Cuv. Aim. Mus. x. p. 51, pi. i. fig. 9 (1807) ; Tiedem., 



0pp., 4'- Lib. Nat, Amph. p. 76, pi. xi. (1817) ; Dion. ^- Bihr. iii. 



p. 113 (18.36). 



vulgaris, Scldeg. Sj- Iliill. in Temminck, Ver. Nat. Gesch. Nederl. 



Ind., liept. p. 28, pi. iii. fig. 9 (1844). 

 Bombifrons siamensis Gray, Ann. Sf Mag. N. II. (3) x. p. 269 



(1862). 

 siamensis, part., Gray, Tr. Zool. Soe. vi. p. 144 (1867), and 



Cat. S/i. 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 Cuvicr, is developed into a strong 

 crest followed by another on the occiput) ; mandibular symphysis 

 extending to the fourth tooth ; pra^maxillo-maxillary suture, on the 

 palate, directed backwards : proomaxillaries 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. 



rt. Ilgr., stffd. Camboja. M. Mouhot [C.]. 



