556 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95 
series of paired dark spots (often with lighter edges) more or less sym- 
metrically arranged along the back. The spots of the first pair cross 
the upper eyelid and are closely approximated in the interorbital 
region, but rarely meet to break the continuity of the median light 
stripe or line. The other dark spots are variable in size, there being, 
usually, three pairs on the back. ‘The anterior of these is largest and 
posterior ones vary in distinctness and size. There is usually a more 
or less distinct, broad, irregular stripe on the side running somewhat 
diagonally, while bordering this below or laterally, the side is vari- 
ously marbled or mottled. 
Males, on the other hand, are more or less uniform gray-green or 
gray-olive on the head and back. The limbs are very strongly striped 
with light and dark (which in the females is usually not so pronounced). 
In consequence of the uniform background the pustules of the back 
stand out strongly. These bear dark brown tubercles or spines. 
The latter are confined to the back, while the pustules on the sides 
are as smooth as those of the female. The sides are usually mottled 
with dark and lighter markings, the dark sometimes almost black, 
as are the dark stripes on the limbs on occasion. 
This form in the past has been confused with the recently described 
Bufo perplexus Taylor. 
BUFO WOODHOUSIL WOODHOUSII Girard 
Bufo woodhousit GrRARD, Proc. Acad. Nat. Sci. Philadelphia, vol. 7, 1854, p. 86 
(‘“New Mexico” = San Francisco Mountain, Coconino County, Ariz.). 
Bufo woodhousit woodhousii: Smita, Amer. Midl. Nat., vol. 15, 1934, pp. 449-457, 
pls. 17, 22B, 23B. 
Two young specimens (U.S.N.M. Nos. 105158) are from Rio 
Santa Maria, Chihuahua, October 13, 1938. 
BUFO COMPACTILIS Wiegmann 
Bufo compactilis WrreaGMann, Isis von Oken, vol. 26, pt. 7, 1883, pp. 661-662 
(México [probably from the region about México (City)]). 
The following localities are represented, by seven specimens: 
U.S.N.M. No. 116416, Mamulique Pass, Nuevo Leén, April 29, 
1939; U.S.N.M. Nos. 116417-116419, La Palma, Michoacén, March 
23, 1989; U.S.N.M. Nos. 116413-116414, 40 km. north of México 
(City), in the state of México, May 1, 1939; and U.S.N.M. No. 
116415, Santa Magdalena, near Texcoco, México, August 23, 1939. 
The northern specimen is young and cannot be compared well with 
the southern specimens. The three from Michoacdén have the pus- 
tules and intervening skin somewhat less rough than those from the 
environs of México (city). In the largest of these latter specimens, 
U.S.N.M. No. 116413 (female, 78 mm.), the crests are distinct and 
provided with spots of horn along their surface. In most of the other 
specimens the crests are indistinct or not discernible. 
