21,2 Taylor: Herpetological Fauna, I 183 
Measurements of Bufo megregori 8p. Nov. 
mm, 
Snout to vent 37 
Width of head 12 
Length of head 13 
Length of snout 4.5 
Length of eye 5.2 
Interorbital area é 4.3 
Upper. eyelid 3.5 
Forelimb 26 
Longest finger 11.3 
Hind limb 57 
Longest toe, to metatarsal tubercle 15 
Femur 18 
Tibia 19 
Variation.—Practically all the specimens agree in detail with 
the characters given in the description of the type. The sharp 
ridge on the end of the snout, the slight ridges between the eyes, 
the constriction of the neck behind the temporal region, the 
rounded depression behind, the absence of any indication of 
tympanum, the groove on the snout, the presence of strong tu- 
bercles over the dorsal surface, the presence of three metatarsal 
tubercles, and the extent of the webbing on the fourth toe are 
‘characters strongly evident in every specimen. The largest 
specimen is 40 millimeters long. The belly is usually pinkish 
flesh to dirty white, marbled with darker. Certain of the speci- 
mens have indications of dark markings on the back and the 
limbs with light and dark bars. 
Remarks.—This species is related to Bufo muelleri Boulenger, 
from which it differs in the constriction of the neck, with rounded 
depressions in the post-temporal region (characters apparently 
absent in B. muelleri); in having the entire upper surface of 
the body very strongly tubercular (smooth in B. muelleri) ; 
three instead of two metatarsal tubercles; and a lesser extent 
of webbing between the toes. 
Specimens were found in Tumugao River, Zamboanga, Min- 
danao, about 1 kilometer above the waterworks’ intake. They 
were discovered clinging to spray-moistened rocks, in midstream. 
When disturbed they dived into the swift-flowing water and 
took refuge under stones at the bottom. Sixteen specimens were 
obtained. Found only in this locality. The species is named 
for Richard C. McGregor, ornithologist of the Bureau of Science. 
