R. K. Selander, 1953 71 Mojarras, 25 ft., Chiapas, Mexico Oct. 29 but we didn't have time to make the trip. That place can be reached by car from Puerto Aista - in the dry season. There is a chain of hills surrounding the Laguna de la Taja - these hills are covered with a dense low deciduous forest and seem to be not connected with the main Sierra Madre. From La Polka to Calana the plane is 1/2 - 1 mile wide but from Calana to Mojarras it narrows rapidly and is only 1/4 mile or less wide at Mojarras. Many Caraculus melanotus, Caridix mexicanus, social flycatcher, heard (same as at Tonal?, I think), Crotophaga, black culture, blue grosbeak around Mojarras. Noted several Fregata magnificens and many ducks - also a spoonbill. Many cormorants, herons. A small river (5-8 feet wide running shallows) flows from the