98 BULLETIN 151, UNITED STATES NATIONAL MUSEUM 



1. Lateral gular pouches invariably present, their position indi- 

 cated by blue grey patches. 



2. Center of throat invariably immaculate. 



3. The tibio-tarsal articulation of the adpressed hind limb does 

 not usually extend beyond the end of the snout; it only reaches the 

 eye in one frog (No. 41729), the nostril in 12, the end of snout in 11, 

 and a trifle beyond the end of the snout in the remaining 7. 



4. A hitherto unnoticed character, undoubtedly representing a 

 breeding season adaptation, is that 29 frogs of the series have minute 

 spiny tubercules on the whole of the dorsal surface, including the 

 limbs and flanks; also on a broad band across the hinder part of 

 the belly. The two exceptions are the two smallest males measuring 

 46 and 48 mm., respectively. 



The nine females show a range in length from 40 to 70 mm., with 

 an average of 52.5 mm. Using the same notation for the male 

 characters noticed above, it may be remarked that — 



2. The center of the throat is immaculate in the five youngest but 

 is more or less marbled in the four largest females. 



3. The tibio-tarsal articulation of the adpressed hind limb reaches 

 the eye in 4 frogs, the nostril in 4, and the end of the snout in 

 1 (No. 41728). 



4. The breeding spinosities of the males are faintly represented in 

 two of the females but do not occur on the belly. The}'' are most 

 numerous on No. 49081, which is distended with ova. 



The 23 young show a range in length from 19 to 39 mm.; the 

 larval tails in various stages of absorption are present in specimens 

 between 19 and 26 mm. 



2. The center of the throat is white in every specimen. 



3. The tibio-tarsal articulation of the adpressed hind limb reaches 

 the eye in 5 frogs, the nostril in 17 and the end of the snout only in 1 

 (No. 43099). 



It might be added that any frog under 40 mm. was reckoned as 

 young; it would perhaps have been better to consider anj^thing 

 under 46 mm., as that was the size at which the swollen thumb of 

 the male is distinguishable; it may be that a few juvenile males 

 between 40 and 45 mm. are included in the series of females. 



A butterfly, a caterpillar, and a weevil were in the gullet or stomach 

 of one specimen examined. 



RANA NUTTI Boulenger 



Rana nulti Boulenger, 1896, Ann. Mag. Nat. Hist., ser. 6, vol. 18, p. 467. — 

 Barbour and Loveridge, 1928, Mem. Mus. Comp. Zool., vol. 50, p. 194. 



1 (U.S.N. M. 39436) Kibosho, T. T. (Danzenberger) 1906. 

 37 (U.S.N. M. 40684-6, 41004, 41152, 41935-56, 41958, 42948-56) Mt. 

 Kenya to Fort Hall, K. C. (Sm. Afr. Exped.) 1909. 



