CHECKLIST OF REPTILES OF MEXICO 7 



stops en route. After a few days spent in the environs of Mexico City 

 searching for ambystomids, on August 29 we took the Acapulco road 

 and followed it with only one deviation to Tixtla, Guerrero, arriving 

 at Acapulco on September 3, We returned to Mexico City by the 

 same route, arriving on September 6. Agaui we collected in the 

 immediate environs of Mexico City, chiefly investigating montane 

 faunas. On September 10 we left for Guadalajara but turned back 

 near Sahuayo. We then, on September 15, started northward on the 

 Pachuca Road to El Chico National Park in Hidalgo. After one day 

 there we returned, September 18, to Mexico City, where Dr. Taylor 

 left us. 



We then returned, September 19, to Potrero Viejo. After a few 

 local trips we again returned to the Guadalajara road, leaving Sep- 

 tember 29. We took the side road to the Nevado de Toluca (October 

 2) and then retraced our steps to Mexico City, arriving October 3. 

 After a few days spent in local trips, we turned northward to Laredo 

 with another load of specimens, arriving at Laredo October 17. Our 

 only side trip enroute was to Galeana, Nuevo Le6n, via the road from 

 Linares, Tamaulipas (October 13, 14). 



After nearly two months in the United States, we again crossed the 

 border at Laredo on December 10, 1939, and headed directly for 

 Potrero Viejo, Veracruz, arriving December 15. After a few local 

 trips near Potrero Viejo, we left (December 27) for Tehuantepec by 

 rail. We arrived on December 30 and remained until January 28, 

 1940. A number of side trips were taken, by truck to Cerro Arenal, 

 by rail to Matias Romero, Oaxaca, by rail to Salina Cruz, and by rail 

 to Tonala. Illness necessitated return to Potrero Viejo and ulti- 

 mately to Mexico City. We remained there until March 15, A\hen we 

 returned to Potrero Viejo. On March 17 we started on a side trip, 

 lasting until March 24, which led by highway through Tehuacan, 

 Tecamachalco, thence northeastward on the Jalapa road, to Teziutlan 

 (Puebla) from El Limdn, Totalco, and eastward to Puente Nacional. 



Shortly thereafter we left for Tehuantepec by rail again, arriving 

 April 1. We stayed only one day and traveled by rail to Acapetahua, 

 whence we went by bus to Escuintla. From there pack animals were 

 used to transport our equipment to La Esperanza, a finca about 5 

 miles northeast of Escuintla, We arrived there on April 4 and re- 

 mained until June 5, 1940. Various short side trips were taken to 

 nearby fincas. 



On June 5 we returned to Tehuantepec and, after one day, to 

 Potrero Viejo, arriving June 9. About one month later, on July 6, we 

 crossed the border at Laredo with no deviations from the direct route 

 from Potrero Viejo to the border. 



