RlXORns 0|- THK S.A. MUSKUM 



KEV TO THE .\^s■^i^\Ll AN species (7). 



a. Xasal clett in cont.'u t with tlie tirst labial 



b. is scales round the body ... ... ... 1 grypiis 



bh. JO scales round the body ... ... ... I proxiiinis 



bbb. 2i scales round the body ... ... ... 5 polygfiniiiin'cii.', 



bbbb. i4 scales round the body 



c. rostral nearly as broad as long ... ... -i inisJiiirustris 



cc. rostral a narrow band ... ... ... 5 ligntiis 



aa. Nasal cleft in contact with the second labial 

 d. l.S scales round the bod\' 



e. snoiu angular, nasal divided 



f. rostral produced in front, snout very 



acute ... ... ... 6 kciiti 



ff. rostral not produced ... ... 7 nffinis 



ee. snout rounded, nasal not divided ... 8 giientheri 



dd. 20 scales round the bodv 

 g. head rounded 



h. body stout ... ... ... 9 pingiiis 



hh. body slender 



i. nasal completely divided ... If) hrooiiii 



ii. nasal not conipletel\' divided ... 11 iciedii 

 gg. head trilobed ... ... ... \1 biiiibcrculatus 



ddd. 11 scales round the body 



j. nasal cleft produced on to the upper part of 



the head ... ... ... \i forrt'siaiiiis 



ij. nasal cleft not produced on to the upper part 

 of the head 

 k. ... ... ... ... ]■{ ijii^tralis 



Uk. (see note under the species) ... 15 ictiilii 



dddd. 24 scales round the body 



1. preocular narrower than the ocular ... 16 hatilliis 



11. preocular wider than the ocular ... ... \1 luhialis 



aaa. Nasal cleft in contact with the jireocular 



ni. 20 scales roiuui the bod\- ... ... ... 18 ilivcrsiis 



nun. 11 scales round the botly ... ... ... 14 endotcnis 



17) lluuloti^er has UlemilMMl \\itli 7', olivaceiis (Irav', Ironi llic I'liilippiiies. a \0un14 sporinic!' 

 taken ai Cbanipioii liav, N W .\iistralia. 



