Head to head
Baja California Legless Lizard vs California Legless Lizard
A Baja California legless lizard and a California legless lizard are both limbless, sand-swimming lizards that were once considered part of one broader, more widespread species before genetic study split them apart.
| Baja California Legless Lizard | California Legless Lizard | |
|---|---|---|
| Scientific name | Anniella geronimensis | Anniella pulchra |
| Range | Baja California peninsula, Mexico | California, USA |
| Limbs | None | None |
| Functional eyelids | Yes | Yes |
| Locomotion | Swims through loose sand | Swims through loose sand |
| Scale texture | Smooth | Smooth, polished, silvery-grey |
| Split from a wider species complex | Yes, circa 2013 | Yes, circa 2013 |
| Conservation status | Data Deficient | Least Concern |
Baja California Legless Lizard vs California Legless Lizard: common questions
Are the Baja California legless lizard and California legless lizard the same species?
No, though both were once considered part of a single, more widespread legless lizard species before genetic study in the early 2010s split the complex into several separate species, with the Baja California legless lizard occupying the Baja California peninsula of Mexico and the California legless lizard found across parts of California.
How can you tell either of these lizards apart from a snake?
Both retain functional eyelids and can blink, a feature entirely absent in snakes, along with other subtle physical differences, making eyelids one of the more reliable ways to confirm either species is a true lizard despite having no visible limbs at all.
Why is less known about the Baja California legless lizard than the California legless lizard?
The Baja California legless lizard was recognised as its own distinct species more recently and occupies a less thoroughly studied range along the Baja California peninsula, whereas the California legless lizard's presence within a heavily researched US state has allowed for more comprehensive population data to be collected over time.