igzo.] G. A. Boui.ENGER : Frogs of the Genus Rana. 113 



This species dispenses with the ordinary metamorphoses, the 

 young emerging from the eggs, which are laid in moist crevices of 

 rocks close to the water, in the perfect condition, without a 

 vestige of tail. The eggs measure 6 to 10 millim. in diameter ; the 

 advanced young, within the transparent gelatinous capsule, show no 

 gills, but each side of the abdomen is provided with several regular 

 transverse folds which must be regarded as breathing organs; the 

 tip of the snout bears a small conical horny tubercle for the purpose 

 of cutting through the egg-capsule. 



Habitat. Solomon Islands (Faro and Treasury Islands). 



Rana ventricosa, T. Vogt, Sitzb. Ges. Nat. Fr. Berl. 1912, 

 p. 8, which, according to the description, differs only in having the 

 toes entirely webbed, is from Lambassa Island. 



55. Rana guppyi. 



Rana gtippyi, Bouleng., Proc. Zool. Soc. 18S4, p. 211, Tr. Zool. Soc. XII, 

 1S86, p. 4.8, pi. ix, and Ann. and Mag. X.H. (9) I, 1918, p. 239. 



Vomerine teeth in short and strong, transverse or slightlj* 

 oblique, straight or curved series behind the choanae and extend- 

 ing outwards beyond the vertical of the inner edges of the latter, 

 the space between the two series greater than the length of one 

 of them. Tongue with a more or less distinct small obtuse 

 papilla in the middle. 



Head large, much depressed, broader than long ; snout ob- 

 tusely pointed, projecting a little beyond the mouth, much longer 

 than the eye ; canthus rostralis rather strong ; loreal region very 

 oblique, not or but feebly concave ; nostril much nearer the tip of 

 the snout than the eye ; distance between the nostrils equal to or 

 a little less than the interorbital width, which equals that of the 

 upper eyelid; tympanum distinct, g- to J the diameter of the eye, 

 I to over its distance from the latter. 



Fingers moderately long, the tips dilated into small discs, 

 with a groove in front, separating the upper from the lower 

 surface ; first finger longer than the second, third as long as or a 

 little longer than the snout; subarticular tubercles large and pro- 

 minent. 



Hind limb rather long ; the tibio-tarsal articulation reaches 

 the eye or the end of the snout, the heels meet or feeblj^ overlap 

 when the limbs are folded at right angles to the body ; tibia 3 to 

 3^ times as long as broad, is to 2| times in length from snout to 

 vent, shorter than the fore limb, as long as or a little shorter 

 than the foot. Toes moderately long, the tips dilated into small 

 discs similar to but a little larger than those of the fingers, | 

 to entirely webbed, the web not penetrating very far between 

 the outer metatarsals ; subarticular tubercles large and oval, pro- 

 minent ; no tarsal fold ; inner metatarsal tubercle elliptic, flat, i 

 to s the length of the inner toe ; a rather large but rather indis- 

 tinct outer tubercle. 



Upper parts smooth or with small warts, especially on the 

 upper eyelids and on the sides ; an interrupted glandular fold 



