CYSTAGNATHUS SENEGALENSIS. -Dum and Bib. 
Rei j tilia. — Plate LXII. 
C. supeme flavus, dorso fascia longitudinali brunneo-rubra variegato ; latenbus extremitatibusque 
externe inaculis oblongis brunneo-rubris notatis; maculo ejusdem colons ante etiamque post oculuin ; 
partibus inferioribus subocbreis, et subgranulatis. 
Cystagnathus Senegalensis, Dum et Bib. ; Herpet Gcner., tom. viii. p. 418. 
Colour. The upper and lateral parts of the head and body, and the outer 
and hinder parts of the extremities, gamboge-yellow, variegated with light 
umber-brown ; the variegations are a dorsal band, a number of longitudinal 
blotches on the sides, an oblong spot, extending from the eye to the nose, 
and irregular-shaped spots on the extremities. The dorsal band commences 
a little behind the nose, and terminates on the sacrum, is pointed at its 
origin, and increases in width as it proceeds backwards. The longitudinal 
blotches on the sides are six or nine, generally arranged in two irregular rows, 
one spot always situated immediately behind the outer canthus of the eye, 
and close to the tympanetic membrane, which is likewise dark coloured ; 
another spot generally at the base of each hinder leg : the spots on the ex- 
tremities are smaller, and are freely scattered over the outei and hinder 
parts, those that occur near to and on the toes being very small : all the spots, 
as well as the dorsal band, are edged narrowly with a darker tint of the same 
colour. The lower portion of each side of the body, below the longitudinal 
blotches, is finely mottled witli small umber-brown freckles. The under 
parts of the head and body, and the inner surface of the extremities, inter- 
mediate between sienna-yellow and ochre-yellow. Eyes pale bottle-green, 
finely freckled with yellow, the freckles with a strong metallic lustre. 
Form, &c. — Figure ovate, sides bulged, extremities short ; head depressed, 
broad behind, narrower anteriorly, the nose obtuse and rounded ; the central 
portion of the upper surface of the head, between nose and eyes, triangular, 
the apex slightly blunt; sides of the head divergent. Eyes prominent, 
situated nearly over the angle of the mouth ; pupil vertically ovate ; tym- 
panum small and oval, or subcircular. External nostrils small, situated one 
on each side of the tip of the nose ; internal ones considerably larger, and 
subcircular. Two small groups of teeth on the vomer , near the middle of the 
palate directly between the inner nostrils, and nearly parallel to each other. 
Tongue oblong, cordiform (fig. b), its sides and hinder third free, its centre and 
point adherent to the parts beneath it. Anterior extremities slender, and the 
longest toe extends a little behind the anterior edge of the thigh at its base ; 
