10 ITPHLOPID^. 



tttt 26 scales, round the body ; diameter of body 

 26 times in the total length. 



28. schneideri, p. 27. 



ttttt 20 scales round the body; diameter of 

 body 22 to 30 times in the total length. 



29. reticulatus, p. 27. 



tt Nasal completely divided into two. 



24 scales round the body 26. aeuticauda, p. 26. 



22 scales round the body 27. aluensis, p. 27. 



18 scales round the body 30. tenuis, p. 28. - 



c. Nasal cleft proceeding from the first labial. 



20 scales round the body 31. filiformis, p. 29. 



22 scales round the body 32. temminckii, p. 29. , 



2. Preeocular in contact with the third labial only. 

 a. Nasal incompletely divided. 



30 scales round the body 83. ruftcauda, p. 29. 



24 or 26 scales round the body 34. Jcraali, p. 30. 



6. Nasal completely divided into two. 



24 scales round the body 35. platycephalus, -p.SO. 



20 or 22 scales round the body 36. lumbricalis, p. 31. 



18 scales round the body ; tail longer than 



broad 37. exiguus, p. 31. 



18 scales round the body ; tail broader than 



long 38. ccBcatus, p. 32. 



B. Snout rounded ; nostrils inferior. 



1. Eostral narrow, not more than one third the width of the 

 head. 



a. Nasal cleft not extending to the upper siirface of the 

 snout, which is much depressed ; 22 scales round the 

 body. 



Diameter of body 30 times in the total 



length ; tail broader than long 39. cuneirostris, p. 32. 



Diameter of body 58 times in the total 



length ; tail longer than broad 41. depressus, p. 33. 



6. Nasal cleft extending to the upper surface of the snout. 



24 scales round the body ; nasal cleft pro- 

 ceeding from the first labial 44. ligatiis, p. 34. 



22 scales round the body ; nasal cleft pro- 

 ceeding from the second labial 45. torresianus, p. 34, 



