28 



bulletin: museum of comparative zoology. 



upper and lower jaws (Figure A). Where the scales show a tendency 

 to be imbricated, as they are on most of the body region, the organs 

 are situated on the thicker caudal Iwrder of each scale, the bristles 

 projecting backward. From one to three were found on each scale 



Fig. C. — Imbricated scales from the ventral tail region, showing sense organs 

 at the posterior margin of the scales. 



Fig. D. — Ventral surface of a portion of a fore-foot digit. The terminal 

 part shows the "hairs "projecting from the distal edges of the scales; the 

 subterminal part, where the tactile "hairs" are absent, shows the position 

 of the adhesive organs. 



in the dorsal cervical region, while they are more abundant in the 

 dorsal tail region (Figure C). The scales from the frontal region of 

 the head (Figure B) show a distribution of sense organs intermediated 



