16,38 Taylor: Philippine Amphibia 233 
tigerina Daudin and R. macrodon Kuhl. Stejneger *° recognized 
that the large-toothed species of the Philippines is distinct.from 
Rk. macrodon and named it R. magna. Rana vittigera and R. 
moodiet have long been confused with R. tigerina, but the char- 
acters which obtain in the first two groups show clearly that 
they are very distinct from R. tigerina. 
It was with great hesitancy that I united the two species, 
Rana varians Boulenger and R. sanguinea Boettger. I have not 
examined the types, but a comparison of the type descriptions 
shows no differences warranting separation. My opinion was 
confirmed by a comparison of specimens from the Calamianes 
and Palawan. 
Key to the Philippine species of Rana Linnzus. 
a’. No gland on upper arm. 
b*. Fingers and toes not or but slightly dilated at tips; no bony teeth 
in lower jaw. 
c’. Eyelid much wider than interorbital distance; no distinct canthus 
rostralis (large frog). 
d’. A flap of skin on outer side of fifth toe and metatarsal. 
R. moodiei sp. nov. 
@. No skin flap on fifth toe and metatarsal... R. vittigera Wiegmann. 
c’. Eyelid about equal to interorbital space. 
d'. Toes almost completely webbed; skin granular (small frog). 
R. mindanensis Girard. 
a. Toes about two-thirds webbed; a narrow dorsolateral fold. 
R. palavanensis Boulenger. 
c. Eyelid much narrower than interorbital space; skin smooth; toes 
one-half webbed (small frog) R. parva sp. nov. 
6*. Fingers and toes distinctly dilated into small disks, without a groove 
around the edge; two well-developed bony teeth in the anterior 
part of lower jaw. Canthus rostralis distinct, angular. 
ce. Toes entirely webbed; tympanum large, distinct; dorsolateral 
fold sometimes present in young (large frog). 
R. magna Stejneger. 
. Toes about two-thirds webbed; tympanum large; dorsolateral fold 
‘ usually present (rather small frog) .............. R. leytensis Boettger. 
b*. Fingers and toes dilated into regular disks with a transverse groove 
around disk; no bony mandibular teeth. 
c’. A broad wandular dorsolateral fold; tympanum equals four-fifths 
eye; canthus rostralis rounded; toes about four-fifths webbed. 
R. erythrea (Schlegel). 
ce. A narrow dorsolateral fold. 
@. First finger shorter than second. 
e’. Snout truncate; finger disks large; tympanum three-fourths 
eye; canthus rostralis angular.............. R. mearnsi Stejneger. 
e’. Snout obtuse; tympanum about two-fifths eye; canthus rostralis 
RUVUINE ee a ee R. dubita sp. nov. 
* Smithson. Mise. Coll. 52 (1908-10) 437. 
