MEXICAN AMPHIBIANS—TAYLOR AND SMITH 523 
A preliminary examination of the amphibians was completed by 
Smith while at the U. S. National Museum in 1941 and 1942. More 
attractive studies and other duties assumed subsequently interfered 
with the undertaking of a careful study, however, for a considerable 
period. Then, since further delay would unduly hinder the comple- 
tion of our projected summary of the amphibians of México, at the 
junior author’s request Taylor undertook the final study of the am- 
phibians. Most of the descriptive work of the completed summary 
is his, although of course each author has studied the specimens and 
agreed upon the proper treatment for them. 
Our purpose in presenting this paper is to summarize briefiy the 
Bacon collection alone. The treatment is complete except for 
Ambystoma sp. and a new genus of hylid frogs, description of which 
will appear elsewhere. Since a summary of wider scope is being com- 
piled at present, we have included here but few extraneous notes; 
those included chiefly concern U.S. National Museum specimens. 
The synonymies are so constructed as to give references at least to 
(1) the original description and (2) the first appearance of the com- 
bination we adopt. For many species the synonymy requires but 
one reference to satisfy these two demands. In certain cases we 
have included other references we believe quite important, partic- 
ularly if they concern synonymic names. Citations of other refer- 
ences, where necessary, are given parenthetically in the species dis- 
cussions. All papers referred to are listed in the ‘‘ Literature Cited.” 
The photographs were taken by the University of Kansas photog- 
rapher, Miss Burch Brown, and the drawings are the work of Rob- 
ert Nabours, of the same institution —H. M. Situ. 
Order APODA Gray, 1825 
Family CAECILIIDAE Gray, 1825 
Genus GYMNOPIS Peters, 1874 
GYMNOPIS MULTIPLICATA OAXACAE Mertens 
Gymnopis multiplicata oaxacae Mertens, Abh. Ber. Mus. Magdeburg, vol. 6, 
1930, pp. 153-155, fig. 14 (Cafetal Concordia, 600 m., between Puerto Angel 
and Salina Cruz, Oaxaca). . 
Six specimens are in the collection: One from Xaltianguis, Guerrero 
(U.S.N.M. No. 115057), collected by E. H. Taylor, September 2, 
1939; and the other five from La Esperanza, Chiapas, April 5, 1940 
(U.S.N.M. Nos. 115058-115062). 
The specimen from Guerrero was found under leaves in a shallow, 
open arroyo in a field. An adult female was found in a rotten log on 
April 5, 1940, at La Esperanza, Chiapas. It was drowned in alcohol, 
and when the abdomen was cut open, four live, wriggling, young 
