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Puerto Armuelles, July 21, 1967, VII 29

humid indeed. Standing ground water visible in many places at this time of the year Much wetter than forest on Barro Colorado. Possibly real rain forest, in the technical sense of the term. (According to Della Serra, there is a 2-month "dry season" or "verano" here, in February and March, but they probably are very far from being completely dry.)

Our travels in this area were as follows: We landed at Límones, on the Panamanian side. Then we crossed the peninsula diagonally, to a place called Atracho on the Costa Rican coast. Then we went along the coast (toward the point) to a place called Plaza Bonita (near the Quebrada del Tigre). We explored the environs of this site. And then we returned to Límones via Atracho.

The monkeys definitely known to occur on the peninsula are Saimiri, Cebus capucenus, Alouatta, and Ateles 'geoffroyi." The first three are very abundant. the fourth was abundant once, but has been greatly reduced by hunting. We observed the first three very frequently, but never saw the fourth at all.

Alouatta is primarily an inhabitant of the old and tall forest. The remaining Ateles also may be confined to such habitats. Cebus is abundant in old and tall forest, but it also comes into the coast forest, second growth, and even raids the mature corn fields, banana plantations, and (presumably) any gardens here food may be available.
Saimiri certainly is a species of second growth and edge. it is very common in the coastal forest and in mature plant