566 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 95 
Genus ELEUTHERODACTYLUS Duméril and Bibron, 1841 
ELEUTHERODACTYLUS ALFREDI (Boulenger) 
Hylodes alfredi BoULENGER, Proc. Zool. Soc. London, 1898, pp. 480-481, pl. 39, 
fig. 1 (Atoyac, Veracruz, México). 
Eleutherodactylus alfredi Kreutuoae, U.S. Nat. Mus. Bull. 160, 1932, p. 99. 
This species has been found to be relatively common in the general 
region about Cordoba. Our series of 76 specimens was acquired at 
Cuautlapan, Veracruz, January 2-16, 1939, January to February 
and August 7-14, 1940, a few hundred feet higher than the type 
locality of Atoyac, which lies to the northeast about 30 km. Speci- 
mens here were taken below the sheaths of banana leaves. U.S.N.M. 
Nos. 116491-116505 are cataloged. 
The species attains a known maximum size of 45 mm., there being 
one female of this length; the largest known male is 30.2 mm. The 
width of the toe disks is greater than the tympanum in the females, 
smaller in the males. Measurements of a large female and a large 
male show the following: Tympanum, in female, 2.45 mm., about 
half the length of eye (5.1 mm.); largest finger disk, 2.8 mm. Of the 
male, the tympanum, 3.1 mm., about three-fourths of eye (4 mm.); 
largest finger disk, 2 mm. 
The variation in color is not great. In life the specimens are olive, 
gray, or olive-brown, rarely somewhat greenish. Young males show 
some dorsal pattern that is more or less symmetrically placed; but 
it is almost entirely lost in adults. In these the pigment is rather 
evenly distributed with a faint suggestion of a dark interorbital 
region. While young specimens show some bars on the legs, they are 
obsolete in adults; some of the larger females show some scattered 
cream flecks. 
The inner tarsal fold is present, extending nearly half the distal 
length of tarsus. It is distinctly lateral and not conspicuous. There 
is no evidence of the inguinolumbar gland or the axillary gland, nor is 
there a parotoid. If these glands are present they are diffused. The 
vomerine teeth are well developed, and the tongue is subcircular and 
somewhat emarginate behind. The dorsum lacks ridges and tubercles 
except that a trace of a dorsolateral ridge is often evident; however, 
the back is minutely tubercular seen under the lens. ‘The ventral disk 
is absent or barely indicated, and only the edges of the venter show any 
areolation. 
Preserved specimens may be light gray to dark brown; the underside 
of the hindlimbs and the posterior part of the femur are rather heavily 
pigmented; only the median abdominal region may lack pigment. 
One character seemingly invariable and usually evident in preserved 
specimens is the grayish center of the tympanum. This in turn is 
surrounded by a brownish ring, while the edge of the tympanum is 
grayish. 
