Vertebrates from the Barrier Island of Tamaulipas, México

Tucked between the Gulf of Mexico and the Laguna Madre, a narrow barrier island stretches some 140 miles along Tamaulipas, its shifting sands and tidal passes largely untouched by scientific collectors. In the early summer of 1961 a team of zoologists ventured onto the island’s northern reaches, documenting vertebrate life over a five‑day expedition. Their field notes capture a vivid portrait of the island’s dunes, salty lagoons, and the subtle ecological forces that shape its wildlife.

The resulting inventory lists 63 reptiles, 33 mammals and 97 birds, presented with skins, skeletons and fluid‑preserved specimens, each identified by leading specialists. Accompanying plates illustrate key habitats—from low‑lying sedge flats to thorny mesquite thickets—showing how plant communities influence animal distribution. Listeners will come away with a clear sense of the island’s biodiversity, the challenges of fieldwork in a dynamic coastal environment, and why such overlooked regions matter to broader conservation efforts.