10 BULLETIN 160, UNITED STATES NATIONAL MUSEUM 



several sources. The bulk of this collection, however, was gathered 

 by two men: Dr. Alexander G. Ruthven, who made a herpetological 

 collection for this museum in Vera Cruz, and Paul D. R. Ruthling, 

 who during 1919 and 1920 assembled a large and varied collection. 

 Ruthling's itinerary covered Mexican States as follows : In 1919 collec- 

 tions were made in Colima in April; in the Federal District in May 

 and July ; in Vera Cruz in June ; field work was carried on in Guana- 

 juato during the first week in August; the remainder of August, Sep- 

 tember, and October were spent in Jalisco; in November and Decem- 

 ber field work was carried on in Nayarit and Sinaloa; during May, 

 June, and the first part of July, 1920, amphibians were collected in 

 Oaxaca, while Puebla was visited during the latter part of July. Tliis 

 material for the most part is well preserved, so that a critical deter- 

 mination of some doubtful points of external form of some of the 

 ampliibians, which hitherto had been known only from specimens 

 collected many years ago, was possible. 



The Museum of Comparative Zoology, at Harvard College, Cam- 

 bridge, Mass., possesses a number of Mexican amphibians. From 

 1878 to 1880, Dr. Edward Palmer, a botanical collecter, seems to have 

 been somewhat interested in the natural history of Tamaiilipas, San 

 Luis Potosi, and Coahuila, as specimens from these localities were 

 sent to Cambridge. In 1911-12, members of a party engaged in 

 Mayan archeological work in Yucatan, particularly L. J. Cole, 

 Edward H. Thompson, and O. Ricketson, sent specimens to this 

 museum. A few specimens were collected by J. L. Peters in the 

 State of Quintana Roo. From the State of Hidalgo, this museum 

 has specimens collected by Dr. William M. Mann. An ornithologi- 

 cal collector, W. W. Brown, preserved a few amphibians in the course 

 of his field work in Tamaulipas, San Luis Potosi, and Sonora. Dr. 

 E. R. Dunn collected in the State of Vera Cruz and in the Federal 

 District in 1921. On this trip Doctor Dunn collected the type 

 specimens of Eleutherodactylus dunnii Barbour and Syrrhopus mys- 

 taceus Barbour near Jalapa in Vera Cruz. Several other individuals, 

 including Dr. G. O. Rogers, P. Townsend, D. B. van Brunt, G. 

 Gliickert, and T. J. Potts, have presented Mexican amphibians to the 

 Museum of Comparative Zoology. 



Along with his collections of fishes, S. E. Meek included a small 

 number of amphibians found in the States of Tamaulipas, Guana- 

 juato, Federal District, and elsewhere in Mexico in Ms shipments to 

 the Field Museum of Natural History, Chicago, 111. Two mammal 

 collectors, Edmund Heller and C. M. Barber, likewise collected a 

 few amphibians in the State of Vera Cruz. A few specimens were 

 presented by Dr. C. H. T. Townsend, and a collection made by 

 Senor F. Ferrari-Perez, director of the museum at Tacubaya, Mexico, 



