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 border of each scale, the bristles 
projecting backward. From one to three were found on each scale 
Fie. C.— Imbricated scales from the ventral tail region, showing sense organs 
at the posterior margin of the scales. 
Fic. 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 | 
