INVESTIGATIONS ON PARAGUAYAN BATRACHIANS. 
229 
Coloration quite the same as on Boulenger’s specimens. Greyish- 
white or ashgrey above. The triangular spot between the eyes broadly 
arises from the outer edge of the upper eyelid and is margined with white 
in front and behind ; the large saddle-shaped spot on the sacral region 
distinct ; a more or less distinct curved streak on the postorbital fold and 
a concave stripe on the shoulder black ; upper lip with vertical bars : 
limbs cross-barred; lower parts dirty-white, more or less speckled with 
brown, sometimes purely white. 
20. Hylella Anisitsi n. sp. 
(Pi. XIII, fig. 13 — 14.) 
One specimen ; length 22 mm. from snout to vent. 
Tongue semicircular, entire and sligthly free behind. Head broader 
than long. Snout rounded, once and two thirds as long as the diameter 
of the eye. Canthus rostralis none ; loreal region oblique, convex ; nostril 
from the eye as far as the diameter of the latter ; interorbital space 
distinctly broader than the upper eyelid ; tympanum very distinct, one 
half the diameter of the eye. Fingers with a slight rudiment of web ; 
first much shorter than second ; two metacarpal tubercles, inner oval and 
smaller, the outer much larger and in front longitudinally bisected by a 
distinct furrow, as in Hyla nasica Cope. Toes two third webbed; disks 
nearly two thirds the diameter of the tympanum ; subarticular tubercles 
well developed ; a larger inner and a smaller outer metatarsal tubercle ; 
tibio-tarsal articulation reaches the centre of the eye. Skin with scattered 
minute granules, throat, belly and lower surface of thighs granulate ; a 
postorbital fold surrounds the tympanum, curves to arm. 
Coloration. Above grey ; between the eyes some dark spots ; behind 
the upper eyelids two dark bands, irregularly edged and broken behind 
into spots (fig. 13); from snout to eye an irregularly edged dark streak, 
behind the eye a blackish-grey, irregularly edged band surrounding the 
upper half of the tympanum and extending to groin, but broken into 
spots from the middle of the flank. Upper lip indistinctly spotted with 
dark-grey ; limbs cross-barred ; hinder side of thighs indistinctly blackish- 
grey spotted ; beneath yellowish-white, throat mottled with grey. 
This species in its exterior much similar to some young specimens 
of Hyla nasica Cope ; between the second and third phalanx is one inter- 
articular cartilage to be found (pi. XIII, fig. 14. ia ), and the last phalanx 
clawlike as in Hyla, but there is no trace of vomerine teeth. 
Named in honour to the discoverer. 
