250 MR. G. A. BOULENGER ON BATRACHIANS AXD 



digital expansions and the absence of a glandular lateral fold in the young distinguish 

 B. macroscdis from R. arfakl iSIeyer. 



The habitat of R. macroscelis would embrace Waigiou and the Aru Islands in 

 addition to New Guinea. 



11. Rana PAPUA Less. 



Mimika E. (B. O. U. Exped.). — Launch Camp and Canoe Camp, Setekwa R. to 

 Camps 111 and VI, Utakwa R., 2100-2500 ft. (Wollaston Exped.). 



If this species really varies to the extent described by van Kampen, Nova Guinea, 

 Zool. V, p. 164 (1900), and by Roux, Abh. Senck. Ges. xxxiii. 1910, p. 224, it is 

 difficult to conceive how R. temporalis Gthr. and a few allied Indo-Malay and 

 Papuan frogs are to be separated from it, and the two following would also have to be 

 lowered to the rank of varieties. 



12. Rana grisea van Kampen. 



Nova Guinea, ix., Zool. p. 460, pi. xi. fig. 3 (1913). 



Three specimens, males, from Utakwa R., Camps III and VI «, 2500-3000 ft. 

 (Wollaston Exped.). 



Agree well enough in essentials with the description, drawn up from a single 

 female specimen from the Went Mountains, circa 4200 ft., and differ from all the males 

 referred by me to R. papua in being provided with external vocal sacs and humeral 



glands. 



Vomerine teeth extending a little beyond the posterior border of the choanse. 

 Head as long as broad; snout rather obtuse, as long as the eye; interorbital space 

 narrower than the upper eyelid; tympanum two-thirds the diameter of the eye. 

 Tibio-tarsal articulation reaching beyond the tip of the snout ; tibia as long as or 

 a little shorter than the distance from occiput to vent. Skin of back nearly smooth 

 or finely granulate, with a few scattered warts. Hinder side of thighs dark, not 

 marbled or indistinctly marbled. From snout to vent 70 to 80 mm. 



13. Rana d^meli Stdr. 



Rana novcE-guinea: van Kampen, Nova Guinea, ix., Zool. p. 37, pi. ii. fig. 5 (1909). 



Three specimens from Mimika R. (B. O. U. Exped.). 



Distinguished from R. papiua by shorter hind limbs (tibia about half length of head 

 and body). 



The specimens I have examined from Port Moresby and Queensland (Cape York) 

 belong to this form. 



14. CORNUFER corruqatus A. Dum. 



Mimika R. (B. O. U. Exped.). — Launch Camp, Setekwa R. (Wollaston Exped.). 



