96 U.S. NATIONAL MUSEUM BULLETIN 288 



broad, flattened but without true lateral ridges, with faint traces of 

 a web, first finger shorter than second, fourth longer than either, 

 reaching halfway on penultimate phalanx of third; a small rounded 

 thumb pad present; a larger flat palmar callus; metacarpal tubercles 

 not very distinct. Toes broad, short, one-fourth webbed, third and 

 fifth toes subequal, their tips reaching to base of antepenultimate 

 phalanx of fourth; a small round inner metatarsal tubercle and a 

 smaller outer one; no apparent tarsal ridge; a thick skinfold on heel 

 and knee. Body stout, in postaxillary region equal to greatest width 

 of head. When hind leg is adpressed, heel reaches axilla; when limbs 

 are laid along the sides, knee and elbow are separated; when hind 

 legs are bent at right angles to body, heels are separated. Skin of 

 upper parts thickly covered with rounded tubercles in three rows 

 (the largest tubercles in a row along dorsolateral line, two less-distinct 

 rows are on each side of midline) ; venter granular, with large and small 

 granules mixed on the belly and very small ones on throat; a very 

 thick glandular ridge from posterior corner of eye ending in the short 

 round parotoid; no skinfold across the chest; no ventral disk; a median 

 external vocal sac in the male. 



Dimensions. — Head and body, 34 mm.; head length, 11.5 mm.; head 

 width, 12 mm.; femur, 11.5 mm.; tibia, 11 mm.; foot, 10 mm.; hand, 

 8.5 mm. 



Color in alcohol. — Dorsum immaculate clove brown; side of head and 

 body clove brown to sepia; belly wood brown with sepia suffusions, 

 throat paler in the center, darkening to clove brown around edge of 

 jaw; posterior femur clove brown above lightening to drab below; 

 palms of hands and soles of feet dull sepia. [The collector notes that 

 the two toads were nearly black when alive.] 



Remarks. — The four paratypes are much like the type in structure, 

 except that in one example the adpressed heel reaches the front of the 

 shoulder and the toes are one-third webbed. The belly may be mottled 

 seal brown and sepia, or olive to dull buff with somewhat more 

 distinct dark dots. One of the paratypes appears to have a partial 

 light midventral line, and three have narrow light mid dorsal lines. 

 The back is very dark in all the individuals, with none of the dorsal 

 spotting characteristic of Bujo typhonius. In typhonius it is the post- 

 ocular and supratympanic crests that are frequently over-developed 

 in old adults; in the rostratus forms it is the nasal and supraocular 

 regions that show most specialization. Bujo ceratophrys Andersson and 

 B. dapsilis Myers and Carvalho likewise suggest an interrelationship 

 with B. typhonius and B. rostratus. Numerous differences exist, how- 

 ever, and, upon close examination, even an unusually long-snouted 

 typhonius can scarcely be mistaken for a form of rostratus. 



