
- The March 1997 expedition (via the University of Texas), with lots of links, pictures, and information.
- The Spring 1998 expedition, with details on some of the people involved and other places to obtain information. (Work done at several sites in the states of Coahuila and Tamaulipas.)
- The Thanksgiving 1998 trip, with emphasis on diving, catfish, and crustaceans. (Work done primarily at one site in the state of Coahuila, with a second site in Nuevo Leon.)
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