There are no fisheries of importance except the pearl fisheries on the eastern coast of Lower California, and the tortoise fisheries on the coasts of Campeche, Yucatan, and some of the states facing the Pacific. The pearl fisheries have been worked since the arrival of the Spaniards, and were once very productive notwithstanding the primitive methods employed.
There are undrained, swampy districts in Campeche, in the vicinity of the Terminos Lagoon, where malarial diseases are prevalent, and the same conditions prevail along the coast where mangrove swamps are found.
Yellow fever epidemics are common on the Campeche coast, and sometimes appear at Progreso and Merida.
He followed the coast ound to Campeche, but was unable to penetrate the interior.
The Isla del Carmen, which partly shuts in the Laguna de Terminos (Campeche), is one of Santo y Gulf ?