MEXICAN AMPHIBIANS—TAYLOR AND SMITH 603 
U.S.N.M. No. 46916 reported by Kellogg (1932, p. 188) from Valles, 
San Luis Potosi, is a juvenile Hypopachus cuneus cuneus. 
MICROHYLA USTA GADOVII (Boulenger) 
PLATE 32, FiguREs 5-10 
Eupemphiz gadovit BouLENGER, Ann. Mag. Nat. Hist., ser. 7, vol. 12, No. 71, 
Nov. 1908, p. 552 (San Mateo del Mar, Oaxaca). 
This form, recognized as a subspecies of M. usta, is represented by 
a group of 31 specimens, of which the following are cataloged: 
Oaxaca: Tehuantepec, January 20, 1940, U.S.N.M. No. 116427. 
Curapas: La Esperanza, April7 to June 3, 1940, U.S.N.M. Nos. 116428— 
116442; Acacoyagua, April 25 and May 10, 1940, U.S.N.M. Nos. 
116443-116446; Colonia Soconusco, May 9, 1940, U.S.N.M. Nos. 
116447-116448; Salto de Agua, May 19, 1940, U.S.N.M. No. 116449; 
Las Gradas, May 20, 1940, U.S.N.M. No. 116450. 
This series of 31 specimens and a second series in the EK. H. Taylor— 
H. M. Smith collection of 23 specimens from Tonalé and Tapachula, 
Chiapas, differ from the typical form. These have a hair-fine line 
from the tip of the snout to the anus, usually cream or white in color. 
A somewhat arched transverse line crosses this line slightly in 
front of the anus, follows along the posterior face of the femur, the 
underside of the tibia, and the posterior part of the foot, to the outer 
metatarsal tubercle. A line begins at the tip of the chin and runs 
onto the breast. Many of the specimens also have a line on the 
underside of the arm which crosses the breast and contacts the median 
ventral line. A more or less continuous cream stripe, narrower 
than in the more typical form, runs from the eye to near the insertion 
of the forelimb. ‘The inner metatarsal tubercle is at least a third less 
than the length of the first toe and the size is smaller than the more 
typical specimens. 
We have never found any trace of this pattern, in some 80 speci- 
mens of Microhyla usta usta examined. 
The measurements of 21 fully adult males vary between 20 and 23 
mm., the average being 21.3 mm. Five adult females (gravid) vary 
between 24.5 and 27.4 mm., the average being 25.7 mm. Of the 
entire series of 53 specimens only two lack the markings. One of 
these is more or less desiccated, the leg is longer, the tibiotarsal 
articulation reaching almost to the eye. It is from a higher eleva- 
tion than the other specimens. 
Specimens were found hopping on the ground near moist places or 
small pools of water. 
_ A specimen (U.S.N.M. No. 47530), reported by Kellogg (1932, p. 
188) to be from Minatitlin, Veracruz, actually is from Pinabete, 
Chiapas (8,500 feet), according to a field tag tied to the specimen. 
