2. TYPHLOPs., : 9 
Rostral two fifths the width of the head .. 13. comorensis, p. 21. 
Rostral more than half the width of the 
OS - 3 eee 25. thurstonii, p. 26. 
ttf 22 or more scales round the body ; diameter of 
body 29 times or more in the total length. 
§ Tail not longer than broad, ending in a 
spine. 
{| Rostral one third, or hardly one third, 
but more than one fourth, the width of 
the head. 
24 scales round the body; preocular 
broader than the ocular ............ 14. socotranus, p. 21. 
22 or 24 scales round the body; rostral 
rather more than one third the width of 
the head; diameter of body 40 times or 
more in the total length ............ 15. vermicularis, p. 21. 
24 or 26 scales round the body; diameter 
of body not 40 times in the total length.. 16. diardi, p. 22. 
24 scales round the body ; three concavities [p. 23. 
or pits under the snout .......,...... 17. bothriorhynchus, 
22 scales round the body; rostral not 
quite one third the width of the head .. 19. siamensis, p, 24. 
26 scales round the body ; preocular a little 
broader than the ocular.............. 20. nigroalbus, p. 24. 
§|4{ Rostral hardly one fourth the width of 
the head, not extending to the level 
of the eyes; 24 scales round the body. 
18. oatesii, p. 23. 
{4 Rostral half the width of the head, 
not extending to the level of the eyes ; 
26 or 28 scales round the body. 
21. muelleri, p. 25. 
§§ Tail slightly longer than broad, rounded at 
the end, without spine; 24 scales round 
the body........ 22. madagascariensis, 
[p. 25. 
§$§ Tail longer than broad, ending in a spine ; 
22 scales round the body. 
Rostral about one third the width of the 
ee Pe ie 23. flaviventer, p. 25. 
Rostral nearly half the width of the head. 24. theobaldianus, 
[p. 26. 
