238 Philippine Journal of Science 1920 
Measurements of Rana vittigera Wiegmann. 
^ mm. 
Length, snout to vent 
95 
Length of head, to angle of jaw 
35 
Width of head 
30 
Length of snout 
15.5 
Diameter of eye 
10 
Diameter of tympanum 
6.5 
Eye to nostril 
7.2 
Interorbital distance 
4 
Upper eyelid, width 
7 
Foreleg 
45 
Longest finger 
17 
Hind leg 
154 
Femur 
43 
Tibia 
46 
Foot 
66 
Longest toe 
45 
Variation . — There is slight variation in the amount of webbing 
between the toes, and the toes are never fully webbed. In young 
specimens the toes are more pointed at the tip, while in older 
specimens they are blunter and sometimes swollen. The size of 
the tympanum varies, but is always more than one-half the 
diameter of the eye. Occasional specimens have the nostrils 
exactly halfway between tip of snout and eye. The number and 
arrangement of the longitudinal folds vary with each specimen. 
The arrangement of the vomerine teeth is quite constant; these 
teeth are usually larger and stronger in older specimens. 
The color varies remarkably; about two-thirds of the two 
hundred specimens examined had a median, dorsal, greenish 
yellow or white stripe, from tip of snout to anus, varying in 
width from a stripe of 5 millimeters to a hair line. The diag- 
onal line on the sides is invariably evident, often bright green 
or yellow, frequently dull and rather obscure. The ground color 
varies from grayish yellow to dark blackish brown; frequently 
in lighter specimens the dark spots are green; other specimens 
show the entire back a bright green. Many specimens have a 
narrow yellow line from knee to heel.^^ 
Remarks . — This species differs from Rana tigerina, with which 
it has frequently been confused, in the absence of the membrana- 
ceous fringe on the fifth toe; the absence of bony teeth or 
prominences in the lower jaw; and the lesser amount of webbing 
“ I am indebted to Prof. S. F. Light for several living specimens of this 
species, with numerous tadpoles; and for the privilege of examining a 
.large quantity of living and preserved material at the University of the 
Philippines. 
