10. RI8TELLA. 11. TROPIDOPnORITS. 359 



4. RisteUa beddomii. (Plate XXIX. fig. 4.) 



Ear-opening larger than the nostril ; a single azygos prscfrontal, 

 nearly as large as the frontonasal : fourth to sixth upper labials 

 below the eye. Body much .shorter than in the other species of the 

 genus, the adprcsscd limbs meeting or sliglitly overlapping. Dorsal 

 scales sharply bicariuate. 26 scales round the middle of the body. 

 Reddish brown above, with or without two or three lighter dorsal 

 streaks ; sides with scattered minute whitish dots ; usually a black 

 blotch with a few white dots above the axilhi : lower surfaces Uni- 

 term whitish. 



inillim. millim. 



Total length bO Fore limb 8 



Head 8 Hind limb 10 



Width of head 5-5 Tail 48 



Body 24 



South-western India. 



a. Many spec. Col. Beddome [C.]. 



11. TROPIDOPHORUS. 



Leposoma (7ion Sjnx), Cuvier, E. A. 2nd ed. ii. p. -iS. 

 Tropidophorus, IJmn. ^- Bibr. v. p. 554 ; Gray, Vat. Liz. p. 101 ; 



Giinth. Rept. Brif. Ind. p. 7G. 

 Norbea, Gray, Cat. p. 101. 



Aspris, Blyth, Jouni. As. jSoc. Beng. xxii. 1853, p. 650. 

 Amphixestus, Peters, Man. Berl. Ac. 1871, p. 573. 

 Enoplosaurus, Sauvage, Bull. Soc. Philom. (7) iii. 1879, p. 211. 



Palatine and pterygoid bones in contact on the middle line of the 

 palate, which is toothless. Teeth conical. Eyelids well developed, 

 scaly. Tympanum distinct, superficial. Nostril pierced in a single 

 nasal : no supranasals ; prsefrontals well developed ; frontoparietal 

 present, single or double ; interparietal distinct. Limbs well deve- 

 loped, pentadactyle : digits cylindrical, with transverse lamellae 

 interiorly. 



Southern China, Indochina, Philippine Islands, Borneo. 



This genus forms the passage between Lygosoma (section Ilinulia) 

 and Tribolonotus. 



Sijnopsis of the Species. 



I. A single frontoparietal plate. 



Scales smooth 1. leucospilus, p. 360. 



II. Two frontoparietals. 



A. A single large praeanal. 



Scales all smooth 2. beccarii, p. 360. 



Dorsal scales strongly keeled 3. brooJcii, p. 361. 



