22,0 Taylor: Herpetological Fauna, III 527 



Measurements of type of Rana micrixalus sp. nov. 



Length of head 11.5 



Width of head at tympanum 11.5 

 Diameter of orbit 3.5 



Length of snout 5.5 



Upper eyelid 2.4 



Interorbital distance 3.6 



Forelimb 18 



Longest finger, to wrist 12- 5 



Hind limb 53 



Femur 14 - 5 



Tibia 17 



Longest toe 14 



Variation. — There are three specimens in the collection from 

 Abung-abung, Basilan, and two from Pasananka, Zamboanga. 

 No. 1598C is light brownish lavender above, with the same 

 color on the sides, growing lighter, and dusted with minute 

 purple blotches ; the lores are purplish ; the edge of the lower 

 jaw is dark with yellow spots; throat flesh color; anal region 

 dark; limbs barred above with darker lavender. No. 1598B 

 has a dark purplish streak below the dorsolateral fold. The 

 tubercles on the back are indistinct. 



The Zamboanga specimens are the younger. In No. 1060 the 

 tubercles on the back are very dim; the throat and chest are 

 dusky. No. 1135 is brownish above, with a dim interorbital 

 bar and a strong V-shaped black spot over the flat tubercles 

 between the shoulders. 



Remarks.— The species appears to be related to Rana parva 

 Taylor and R. mindanensis Girard. From R. parva it differs 

 in having the broad dorsolateral glandular fold, the more-back- 

 ward position of the nostril, a rough skin with tubercles, the 

 longer hind leg with the tibiotarsal articulation reaching be- 

 yond the tip of the snout, and in the presence of a fold on the 

 breast. From R. mindanensis it differs in having a narrower 

 eyelid, a wider interorbital area, and the toes half webbed 

 instead of fully webbed. . 



In general form this species resembles a species of Micrixalus. 

 The presence of the vomerine teeth however makes it a true 

 Rana. 



The specimens collected were hopping about in the forest, 

 away from the immediate vicinity of water. I failed to find 

 the species in Jolo. 



