364 sciNciD^. 



8. Tropidopliorus grayi. (Plate XXX. fig. 2.) 



Tropidophoriis cocincinensis {non D. 4* B.\ Gray, Cat. p. 101. 

 Tropidoplionis grayi, Giinth. Proc. Zool. Soc. 1801, p. 189. 

 Enoplosaurus iu^igui^, Sauvac/c, Bull. Soc. Fliilom. (7) iii. 1879, p. 211. 



Head-shields very strongly striated ; frontonasal divided, longer 

 than broad ; an azygos shield between the frontonasals and the 

 praefrontals ; frontal as long as or a little shorter than frontoparietals 

 and interparietal together : four supraoculars, first longest ; five or 

 six supraeiliaries anterior to the fourth supraocular, M'hich borders 

 the eye ; frontoparietals much shorter than interparietal ; fifth 

 upper labial largest and entering the orbit; postmental sometimes 

 divided. Tympanum as large as the eye-opening. 24 to 28 scales 

 round the middle of the body ; dorsals (six longitudinal series) 

 largest, rhomboidal, very strongly keeled, ending in a sharp point ; 

 laterals much smaller, strongly keeled, the keels directed obliquely 

 upwards ; ventrals a little larger than laterals, and much smaller 

 than dorsals, usually distinctly keeled ; gular scales constantly 

 keeled. Three large prolan als. The hind limb reaches the elbow 

 or the axilla. Subdigital lamelloe keeled. Tail compressed, a little 

 longer than head and body, all the scales keeled ; keels on the four 

 upper rows still stronger than on the dorsal scales, spinose, forming 

 strongly serrated ridges. Brown above, with more or less distinct 

 lighter and darker transverse bands or spots ; lower surfaces pale 

 brownish, throat sometimes brown. 



millim. millim. 



Total length 182 Fore limb 2S 



Head 21 Hind limb 37 



Width of head 14 Tail 100 



Body 61 



Philippines. 



a-c. Ad. Philippines. H. Cuming, Esq. [C.]. (Types.) 



d, e-f. Ad. & yg. Philippines. 



g. Ad. * Luzon. Dr. A. B. Meyer [C.]. 



12. TRIBOLONOTUS. 



Tribolonotus, Bum. ^- Bibr. v. p. 364 ; Gratj, Cat. Liz. p. 101. 



Palatine bones in contact on the middle line of the palate, which 

 is toothless. Teeth conical. Eyelids weU developed, scaly. 

 Tympanum distinct, superficial. Head a bony casque, well separated 

 from the neck ; nostril pierced in a single nasal ; no supranasals ; 

 no praefrontals ; frontoparietals and interparietal distinct. Neck 

 and body above and on the sides granular, above with transverse 

 rows of large oeseous bucklers ; lower surfaces with imbricate 

 keeled scales. Limbs well developed, pentadactyle ; digits cylindrical, 

 ■with transverse lamellse inferiorly. 



New Guinea. 



