HYLODES. 237 
tubercle ; metatarsals without subarticular tubercles; no tarsal fold. The length of 
the body is rather less than the distance between vent and heel. Coloration variable : 
light brownish, with or without large darker spots; upper lip and hind limbs cross- 
barred; a blackish band-like spot over the tympanum; a dark interorbital band. 
Sometimes a white vertebral line or a broad vertebral band. The hinder side of the 
femur either cross-banded or with smaller or larger white spots (fig. B) ; one specimen 
with a white line running along the whole length of the hinder side of the posterior 
leg. Male more uniform dusky, with a white interorbital band. 
Q. 3. 
Length of body . . . . . . . . . 50 millim. 36 millim. 
Distance between vent and heel . . . . 53 ,, 40, 
18. Hylodes nubilus, sp.n. (Tab. LXIX. fig. A.) 
Hab. Costa Rica, Escazu (Underwood). 
Habit rather slender, the length of the body equal to the distance between the vent 
and heel. Head flat, moderately wide; snout rather produced, with distinct canthus 
rostralis and subvertical sides. Tympanum half the area of the eye (in an adult 
female). Vomerine teeth in two short transverse series, rather approximate to each 
other, considerably behind the choane, but within the level from their inner margins. 
Choane and eustachian tubes equal in width. Skin of the upper parts smooth, only 
the regions above the shoulder and behind the supraciliary show some small tubercles 
and short narrow glandular folds; abdomen smooth. Disks of the fingers small, but 
distinctly developed and larger than those of the toes; first finger longer than second. 
One metatarsal tubercle, a tarsal fold; metatarsals without subarticular tubercles. 
Dark purplish, clouded with warker, the darker parts concentrated in four indistinct 
longitudinal bands, the middie of which reach almost to the snout. Hind limbs and 
upper lip indistinctly cross-banded; thigh finely marbled behind with brown and 
whitish. Lower parts whitish, with small blackish-brown marblings, a band along 
the middle of the throat being pure white. 
Length of body . 2... ee ee ee ee ee ee milli. 
” hindlimb. . . ...... .. . + 7, 
Distance between vent and heel . . . . . . . . . 48°59 ,, 
19. Hylodes alfredi. 
Hylodes alfredi, Boulenger, P. Z.S. 1898, p. 480, t. 39. fig 1. 
Hab. Mexico, Atoyac in Vera Cruz (A. Duges). 
Habit rather slender, the distance between the vent and heel exceeding the length 
of the body ; head depressed, snout of moderate length, with obtuse canthus rostralis 
and sloping sides. ‘Tympanum half the size of the orbit (in females). Vomerine 
BIOL, CENTR.-AMER., Batr., February 1901. *31 
