192 



JOURNAL, R.A.S. (CEYLON). [VOL. XI*. 



y\ = No transpalatine ; pterygoids not extending to quadrate 

 or mandible ; no supra-temporal ; pra>f rontal forming a 

 suture with nasals ; coronoid present ; vestiges of pelvic 

 arch. 



a Maxillary vertical, loosely attached, toothed; mandible 

 edentulous ; a single pelvic bone. Family Typhlopidce, 

 Nos. 1 and 2. The Glauconiidce are not found in 

 Ceylon. 



g — Transpalatine present ; both jaws toothed. 



a Coronoid present ; prse-frontals forming a suture with 

 the nasals. 



a 1 Vestiges of hind limbs ; supra-temporal present. 



a 2 Supra-temporal large, suspending the quadrate. 

 Boidce, No. 3. 



b 2 Supra-temporal small, intercalated in the cranial 

 wall. Ilysiidce, No. 4. 

 b l No vestiges of hind limbs; supra-temporal absent. 

 Uropeltidce, Nos. 5 to 9. 



b Coronoid absent ; supra-temporal present, suspending the 

 quadrate. 



a 1 Maxillary horizontal ; pterygoids reaching quadrate or 

 mandible. 



a 2 The Xenopeltidce are not represented in Ceylon. 

 b 2 Prse-frontals not forming a suture with nasals. . 

 Golubridce. 



Series A. — Aglyphia. All the teeth are solid, not 

 grooved ; harmless. 

 Sub-Family I. — Golubrince. Post-frontal bone 

 not produced over supra-temporal region ; 

 scales imbricate ; head shields and ventrals 

 large. Nos. 10 to 33. 

 Sub-Family II. — Acrochordince. Post-frontal 

 bone produced over the supra-orbital region ? 

 scales not imbricate. No. 34. 



