16,3 Taylor: Philippine Amphibia 273 
Measurements of Rana similis {Gunther). Nos. FS26 and FS25. 
mm. 
mm. 
Length, snout to vent 
46 
46 
Length of head 
17 
16 
Length of snout 
6.5 
6.6 
Width of head 
14 
14.2 
Diameter of eye 
6.5 
6.2 
Diameter of tympanum 
4.6 
4.2 
Depth of head, in front of eye 
6 
6 
Foreleg 
31.5 
28.2 
Longest finger 
11 
11.6 
Hind leg 
77 
69.5 
Femur 
19.5 
18.5 
Tibia 
24 
19.5 
Foot 
33 
31 
Longest toe 
21.5 
19 
Toe disk 
1.2 
1.5 
Variation. — Eight specimens in my collection from Los Banos 
exhibit but veiy little variation in color and markings. All ap- 
pear to be males ; at least all have the internal openings to the 
vocal sacs. Comparison of the measurements in the preceding 
table with the following measurements of several specimens will 
shovv^ that there is a slight variation in the length of the hind 
leg. 
Body length. 
Hind leg. 
mm. 
mm. 
43.6 
70 
40 
77.5 
46.5 
69.5 
41 
67.5 
44.5 
69 
44 
69 
46.2 
71.5 
In these specimens the tibiotarsal articulation reaches to the 
eye and, possibly, slightly beyond. 
Remarks. — The smooth skin, the shorter legs, the presence of 
a swelling, or papilla, on the anterior part of the tongue, and 
the gland on the upper arm seem to distinguish this species from 
Rana signata Gunther. Rana moellendorffi, Boettger, from Pa- 
lav/an and the Calamianes, is very closely related also; the 
markings, however, of R. moellendorffi are strikingly different, 
the interorbital distance is wider, usually one and a half times 
the eyelid, and the papilla is absent from the tongue. Other 
differences are in evidence on a comparison of the specimens. 
Specimens in the collections are from Bataan and Laguna 
Provinces, Luzon ; the type is from “Laguna de Bay,” Luzon, and 
