EXPLANATION OF PLATE V. 
Rana tigrina, R. limpocharis and ai^lied forms. 
Rana tigrina, Daudin. 
Figs, i, la, ib. — Head of an adult male from Calcutta ( x |). 
2, za. — -Head of young frog from Calcutta (nat. size). 
Rana rugulosa, Wiegmann. 
3, 3<^j 3^- — Head of adult male from Koh Samui, Siam ( x f ). 
Rana cancrivora, Gravenhorst. 
4, j[a, 4b. — Head of adult female from Singgora, Peninsular Siam ( x f ). 
Rana wasl, sp. nov. 
>j 5. 5^*^- — Head of type-specimen (adult female) from Sarawak (nat. size). 
Rana limnocharis, Wiegmann. 
6, 6a. — -Head of adult female of typical form from Java (nat. size). 
Rana limnocharis var, andamanensis (Stoliczka). 
>y 7, 7^- — Head of adult female from Baratang I.sland, Andamans (nat. size). 
