122 
HORN EXPEDITION-REPTILIA. 
indistinct, in the extreme forms liecoming entirely broken up into spots nml 
marblings. Tn these last the dark temporal streak on either side represents 
the remains of the U-shaped dark streak from eye to eye over the nape of the 
distinctly-banded forms. 
Loca/i(ies.—Va\m Creek, Storm Creek, Bagot’s Creek, Opossum Creek, Crown 
Point. 
Distribution. —Houtman’s Abrolhos, Champion Bay (B.M.C.); Barrow Range, 
Southern Cross (Elder Exp.); King’s Sound (Macleay Mus.)—iT; bynoei. Port 
Essington, Peak Downs, Rockhampton (B. IM.C.); King’s Sound, North-west 
Coast, Port Darwin, and Miriam Yale, Queensland (Macleay Mus.)—//. derbiana. 
The genus is thus, as far as is known, exclusively Australian, extending across 
the north of the continent from east to west, but wanting in the soutli-east. 
Habits. —Usually found under logs and stones. 
E be navi a, Boettger. 
(6) Ebenavia horni, L. and F. (Plate XII., Fig. 1). 
Description. —Head long, depressed ; snout rather obtuse, about as long as 
distance between eye and ear-opening. Pupil vertical. Ear-opening small, round. 
Limbs short and slender. Tail depressed, constricted at the base. Digital expan- 
.sioiis twice the diameter of the digit. Lamella} under fourth toe eight, separated 
from expansion by rows of granules. Dorsal surface of expansions scaled as in 
Phyllodactylus. Upper surfaces of body covered with uniform, small, OA’al scales; 
scales on the head round, smallest on the occiput, largest and flattest on the snout; 
no keeled or enlarged tubercles. Rostral very low, four-sided, four times as broad 
as high. Nostril pierced between first labial and three or four nasals, first nasal 
largest, separated from its fellow on the opposite side by a single equal scale, thus 
forming a line of three scales behind the rostral. Nine upper labials. Mental 
narrow, triangular, about as large as adjacent lower labials; latter nine in number. 
No s|)ecial chin-shields, but the gular scales near the symphysis larger than those 
behind. Ventral scales smooth, tessellated, larger than dorsal. Tail with annuli 
of small smooth scales. Colour. —Olive-brown above with four longitudinal dark 
bands, two converging from the occiput to unite over the sacrum, and one on 
each side passing from the nostril through the eye and above the limbs. On the 
side another dark band from the ear, just above' the fore-limb, to the groin. 
