572 



M. G. A. BOULENGER ON THE 



[Nov. 16, 



The length of the vertebral column to the base of the coccyx 

 equals once and a third or once and a half that of the skull. The 

 diapophyses of the seventh and eighth vertebrae are not directed 

 forwards ; those of the ninth are moderately dilated, broader than 

 high. The coccyx does not show any trace of diapophysis at its base, 

 and is a little longer than the skull. 



The rudiment of thumb is little developed. 



Geographical Distribution. — B. cw/f/arts inhabits the entire Palse- 

 arctic Region, extending southwards to Algiers, eastwards to China 

 and Japan. 



9. BuFO TUBEROSUS, Giinthcr. 



Bvfo tuberosus, Giinther, Cat. Batr. Sal. p. 60, pi. iii. f. C 

 (1858). 



Characters. — Crown of the head without bony ridges. Snout 

 short, prominent, obliquely truncated. Interorbital space broad. 

 Tympanum rather small, round, distinct. Parotoids moderate, oval, 

 very prominent. Fingers slender, with single-rowed subarticular 

 tubercles ; first extending beyond second. Hind limbs rather elon- 

 gate ; no large gland on the calf; no tarsal fold ; toes rather short, 

 webbed at the base, with single-rowed subarticular tubercles. Upper 

 parts with very prominent spinous indistinctly porous warts. Uni- 

 form brown, lighter beneath, immaculate or with indistinct spots. 



Dimensions. 



Frotn snout to vent 



Length of Jiead 



Breadth of bead 



From eye to nostril 



„ „ tip of snout . . 

 Greatest diameter of orbit 



Interorbital space 



Diameter of tympanum .. 



Length of parotoid 



Breadth of parotoid 



Body 



Fore limb 



Hind limb 



Tibia 



b. 



m. 

 00fi5 

 0018 

 0-022 

 0005 

 0008 

 00065 

 0006 

 0-003 

 0011 

 0-007 

 0047 

 0046 

 0-088 

 0-027 



m. 



0-071 

 0019 

 0-025 

 00055 

 0-008 

 0007 

 0-0065 

 00035 

 013 

 0-007 

 0-052 

 0-048 

 0-090 

 0-028 



m. 

 0-025 

 0-0075 

 0-009 

 00025 

 00045 

 003 

 0003 

 0-001 

 0004 

 0-002 

 00175 

 0-018 

 00,34 

 0011 



a. 

 b. 





Fernando Po. British Museum. 

 Loc. 1 British Museum. 



Typical specimen. 



Young. 



Gaboon. British Museum. 



Description. — The shape of the snout of this species is quite 

 different from tliat of the preceding : it is short, prominent, obliquely 

 truncated from front to back ; the canthus rostralis is rather dis- 

 tinct ; and the loreal regions are high and vertical. The nostrils are 

 nearer the tip of the snout than the anterior corners of the eyes ; the 



