Anniellidae

( A. grinnelli ): Known from small patches in the southern San Joaquin Valley.

( A. geronimensis ): Restricted to coastal sand dunes in northwest Baja California. anniellidae

They are insectivores, primarily eating insects, larvae, and spiders. geronimensis ): Restricted to coastal sand dunes in

( A. alexanderae ): Found in a very limited range at the base of the Temblor Mountains. alexanderae ): Found in a very limited range

They lack external ear openings but retain vestigial traces of a pectoral girdle. Ecology and Behavior

The family, commonly known as American legless lizards , is a unique group of fossorial (burrowing) reptiles endemic to western North America, primarily California and Baja California , Mexico. Though they are often mistaken for snakes, they are true lizards that have evolved a limbless form to better navigate subterranean environments. Taxonomy and Diversity