The only ports on the coast open to foreign trade are Salina Cruz and Puerto Angel - the first, the Pacific terminus of the Tehuantepec railway, with a spacious artificial harbour, and the second a deep but narrow natural harbour, the projected coast terminus of the Mexican Southern railway.
Allied is Sceloporus, with about 34 species, the most characteristic genus of Mexican lizards; only 4 species live in the United States, and only 3 or 4 are found south of the Isthmus of Tehuantepec and are restricted to Central America.
The Huavis inhabit four small villages among the lagoons on the southern shore of Tehuantepec and have been classed by Belmar as belonging to the Maya stock.
Indirectly the capital has a Pacific coast connexion by way of Cordoba and the F.C. Vera Cruz al Pacifico to a junction with the Tehuantepec line.
There was a narrow isthmus, formed by the sea of Verrazano, like that of Tehuantepec or Panama.
The great drainage scheme which completed the works of the 17th century by taking out the surplus waters of the southern lakes of the valley of Mexico was devised in 1856, begun under Maximilian, proceeded with intermittently till 1885, then taken up with improved plans, practically completed by 1896, and inaugurated in 1900; 2 the harbour of Vera Cruz was finished in 1902; the Tehuantepec railway, likely to prove a formidable rival to any interoceanic canal, was opened on the 24th of January 1906.
The surface features consist of an immense elevated plateau with a chain of mountains on its eastern and western margins, which extends from the United States frontier southward to the Isthmus of Tehuantepec; a fringe of lowlands (tierras calientes) between the plateau and coast on either side; a detached, roughly mountainous section in the south-east, which belongs to the Central American Plateau, and a low sandy plain covering the greater part of the Isthmus of Yucatan.
'OAXACA, or Oajaca (officially Oaxaca De Juarez), a southern state of Mexico, lying partly on the southern slope of the great Mexican plateau and covering the southern and larger part of the Isthmus of Tehuantepec, bounded N.
The extension of the Pan-American railway across the state, from San Geronimo, on the Tehuantepec National line, to the Guatemalan frontier, is calculated to improve the industrial and social conditions of the people.
This line crosses the Isthmus of Tehuantepec from Coatzacoalcos (officially Puerto Mexico) on the Gulf coast to Salina Cruz on the Pacific coast, and has been under construction many years.