30 MR. G. A. BOULENGER ON SOME SPECIES (Feb. 5, 
from Sikkim), measuring up to 68 millim. from snout to vent, and 
in a single Formosan, 60 millim. long, the skin is perfectly free 
from the skull, which shows no trace of rugosities, and the width of 
the interorbital space equals or a little exceeds the width of the 
upper eyelid. The skull of Chinese specimens, up to 48 millim., 
resembles that of the Himalayan, whilst larger specimens, up to 
70 millim., are intermediate between the latter and the Burmese- 
Malayan, both as regards the width of the interorbital space and 
the rugosities, the skin adhering to the fronto-parietals, but not to 
the nasals. In all the other specimens (Rangoon, Tenasserim, 
Siam, Camboja, Cochinchina, Singapore, Sumatra, Nias, Borneo, 
Java, Philippines, Celebes) the skin adheres to the fronto-parietals in 
individuals only 40 millim. long; and in the adult the interorbital 
space becomes very broad and concave, once and a half to twice the 
width of the upper eyelid, strong angular postorbital processes” 
are developed, and the skin adheres not only to the fronto-parietals 
but also to the nasals and squamosals, as may be seen at a" in the 
figure (p. 28). Here follow some measurements, in millimetres, 
of the skulls of specimens from various localities :— 
Darjeeling. |S. China./Rangoon.) Manado.| Siam. 
Lenpth of skull \............ 19 23 20 24 25 
Width of skull ....-.........- 21 24 214 27 28 
Width of fronto-parietals 
Theta 0) deseo cee Speen come noe 63 9 84 10 il 
Width of fronto-parietals 
at postorbital processes... 63 10 92 15 19 
Disk of third finger one half to three fifths the diameter of the 
eye. In some specimens the tibio-tarsal articulation reaches the eye, 
in others the end of the snout, in most between these two points. 
This species presents the well-known colour-variety characterized 
by longitudinal dark bands on the head and body (var. seavirguta 
s. quadrilineata). But, as already noticed by Anderson on an 
Assamese specimen, the passage between this variety and the typical 
form exists ; we have such intermediate specimens from Darjeeling 
and from Formosa. In spotted examples, a small X- or hourglass- 
shaped dark marking, extending to between the eyes, is frequently 
present. The hinder side of the thighs is usually brown, with small 
whitish spots; but these may be absent, as usually in 2. cruciger, 
or they may be large and separated by a dark network, as usually in 
R. maculatus ; these variations do not correspond with any other that 
I can find. 
Hab. Southern China and Eastern Himalayas to the Malay 
Peninsula and Archipelago. 
RHACOPHORUS MACULATUS. 
Hyla maculata, Gray, Ul. Ind. Zool. i. pl. Ixxxii. fig. 1 (1832). 
