Poromera. 123 



in a straight line in the middle, including the collar-plate. No gular 

 fold. 



6 or 8 longitudinal rows of large, hexagonal or rhombic dorsal 

 plates, with very strong keels forming continuous lines ; sometimes 

 8 rows in front and 6 behind ; small scales may be intercalated 

 between the dorsal plates ; upper lateral scales small, keeled, 

 juxtaposed, lower larger, imbricate, strongly keeled, and graduating 

 into the ventral plates, which are similar to the dorsals, but pointed 

 or shortly mucronate, in 8 or 10 longitudinal and 22 to 27 transverse 

 series. Males with a large preanal plate bordered by a semicircle 

 of pointed keeled scales ; females with the preanal region covered 

 with pointed keeled scales. 



Limbs with large rhombic keeled scales. 10 to 15 femoral pores 

 on each side, usually 11 to IS, the series not extending to the distal 

 end of the thigh. Subdigital lamellae with rounded tubercles, which 

 may lie very prominent, 20 to 25 under the fourth toe. 



Caudal scales pointed and very strongly keeled, the whorls sub- 

 equal, the fourth or fifth containing 14 scales. 



Dark olive above, often turning to bronze or copper-colour 

 posteriorly ; two light dorsal streaks, bright bluish white, sometimes 

 edged with blaclc, anteriorly, each originating from the middle of 

 the posterior border of the parietal shield, often disappearing on 

 the posterior part of the back ; the back between the light streaks 

 sometimes blackish, which shade is continued as a stripe to the base of 

 the tail : traces of a light vertebral streak sometimes present in the 

 young ; upper lip bluish green. Tail uniform or with a dorsal series 

 of black spots. Lower parts greenish white in front, salmon-pink 

 behind. 



Measurements (in millimetres) : 



1. 2. 3. 4. 5. 



From end of snout to vent . . 64 62 58 65 47 

 fore limb . 26 24 24 25 18 

 Length of head . . . .17 17 15 16 13 



Width of head . . . 10 11 10 9 8 



Depth of head .... 8 85 7 8 6 



Fore limb 26 26 26 26 19 



Hind liml) 38 38 38 38 29 



Foot 19 19 19 19 15 



Tail 155 130 112 147 107 



1. c?, Benito E. 2. (^ , Batanga. 3. (J,Kribi. 4. 9 , Benito R. 

 5. 9 • Lambarene. 



