Legless Lizard

A legless lizard is a lizard that has lost its legs. It keeps the eyelids, ear openings, and other lizard traits that snakes never had. The group is not one species or even one family.

Glass lizards, slow worms, the sheltopusik, California legless lizards, and Australia’s flap footed lizards all share this body plan. They reached it on separate branches of the lizard family tree. None of them is closely related to a snake.

What counts as a legless lizard

Leglessness is not a single lineage. The Animal Diversity Web puts the family Anguidae alone at roughly 100 species across 12 to 15 genera. Its range runs from Europe and Asia to eastern North America, Mexico, South America, and the Caribbean.

Within Anguidae sit the true glass lizards and the slow worms, plus fully legged relatives like alligator lizards. Outside that family, Australia’s pygopodid lizards, the flap footed lizards, form their own family of around 44 species. California’s Anniella species sit in a small family of their own, Anniellidae.

Several skink lineages and even some worm lizards have reduced or lost limbs on their own. Researchers count limb loss as one of the most repeated evolutionary experiments among lizards. It shows up again and again in unrelated groups.

Losing legs helps an animal push through loose soil, leaf litter, or sand. A limbless body meets less drag than a four legged one in tight spaces. Evolution reached for that same fix repeatedly, in different families, on different continents.

Is a legless lizard a snake

No. A legless lizard is not a snake, even though the silhouette fools most people at first glance. The real differences sit in details a snake simply does not have.

A limbless lizard keeps movable eyelids that close over the eye, just like any other lizard. A snake’s eye is covered by a fixed, clear scale called a brille. That means a snake never blinks and its eyes never fully close.

External ear openings are the second giveaway. A lizard has a small, visible ear opening just behind each eye. A snake has no external ear opening at all, and picks up sound mostly as vibration through the jaw and skull.

The tail is the third clue. Most limbless lizards have a tail that makes up half or more of total body length. Many species can snap that tail off at a fracture point to escape a predator, then slowly regrow a shorter, blunter replacement.

A snake’s tail cannot do this. It never breaks away on cue and it never regrows. Once a snake’s tail is injured, that damage is permanent.

Underneath, these lizards usually keep small, roughly equal sized belly scales similar to their back scales. Some reinforce those scales with bony plates called osteoderms. The tongue is notched rather than deeply forked, and the lizard breathes with two working lungs of similar size.

Snakes have wide, single row belly scales built for gripping the ground. Their tongue carries a longer, thinner fork. Most snakes also rely almost entirely on one elongated lung rather than a matched pair.

Behavior and how they move without legs

Without legs to grip the ground, a limbless lizard moves the way a snake does. It flexes its body into side to side waves that push against soil, grass, or rock. The long tail adds extra length to work with, which is one reason it stayed so long after the legs disappeared.

Most species hide by day under logs, rocks, leaf litter, or loose soil. They come out to forage at dusk, at night, or after rain softens the ground. Anniella goes further still, swimming through loose sand almost like a fish moves through water.

Defense relies on that fragile tail, on burrowing away from danger, and on simply staying hidden. An animal that loses part of its tail survives the encounter. It regrows a stump over the following months, though the new piece is shorter and a different texture than the original.

The main groups compared

The table below lines up the groups a person is most likely to encounter, with their approximate range, adult length, and general legal status. Species detail lives on each group’s own page. This table is a quick reference, not the full picture.

Two groups deserve a quick note beyond the table. Glass lizards get their common name from a tail that shatters into several pieces rather than one clean break. That looks dramatic but works the same way as any other limbless lizard’s tail defense.

The sheltopusik is the largest widely available Anguidae species. It is also the one group here with an established, legal captive bred pet trade, which is why its own care page covers husbandry in depth.

Diet

Every group here hunts small animals rather than eating plants. In the wild, glass lizards, slow worms, and the sheltopusik take insects, earthworms, slugs, and snails. The eastern glass lizard also takes bird eggs, small snakes, and other lizards, and the sheltopusik adds small mice.

The sheltopusik takes a proportionally bigger share of vertebrate prey than the smaller groups. Anniella specializes on soil dwelling invertebrates it meets while swimming through sand: insect larvae, termites, beetles, and spiders. Slow worms lean heavily on slugs, which makes them a familiar and welcome sight in European gardens.

Legal, captive bred sheltopusiks kept by licensed reptile keepers typically eat gut loaded crickets, roaches, and earthworms. Keepers dust that food with a calcium supplement several times a week and a vitamin supplement roughly once a week. The other groups here are not part of any legitimate pet trade, so their captive diets rarely come up outside zoo collections.

Lifespan and size

Size varies enormously across the groups. Anniella tops out around 8 inches, while an eastern glass lizard averages about 37 inches and a sheltopusik can reach 4 feet including the tail. That spread alone explains why one blanket care sheet could never serve every group.

Lifespan is best documented for the sheltopusik, since it is the species most often kept and studied in captivity. The Cincinnati Zoo gives it 20 to 30 years. Eastern glass lizards have lived 4 to 15 years in captivity, and adults weigh 300 to 600 grams.

Slow worms are the record holders. The Animal Diversity Web lists a wild lifespan of up to 30 years and a captive record of 54 years, though most wild animals die far sooner from predation and habitat loss. The California species is short lived by comparison, with a captive record of 6 years.

Reliable lifespan figures for Australia’s flap footed lizards are thinner. Almost none of them are kept long term in captivity. Our lizard lifespan guide covers how these estimates get gathered across species generally.

Care, the law, and welfare

Care for this group really splits into two questions. One is what a legal keeper or zoo does for the single group with an established pet trade. The other is what the law says about all the rest.

Almost every native species on this page is protected in some form. The honest answer for most readers is that keeping a wild caught animal is either illegal or heavily restricted where they live.

Glass lizards fall under general reptile collecting rules in most US states. Several states cap how many can be taken from the wild, and some ban collection outright depending on the species and season.

Anniella is a California species of special concern. It is not open to collection without a state permit, it carries no federal or CITES listing, and captive specimens essentially never enter the pet trade.

Slow worms are protected under the UK Wildlife and Countryside Act 1981 and similar laws across much of the European Union. It is an offense there to kill, injure, or sell a wild caught animal, and developers must relocate populations before building. Australia’s flap footed lizards are native wildlife under Australian state legislation, with permits required for any collection or keeping.

The sheltopusik is the exception that makes a legal pet trade possible. Captive bred animals come from licensed breeders rather than wild populations. Anyone considering one as a pet should look specifically for a captive bred sheltopusik, ask for proof of captive origin, and confirm local import and possession rules before buying.

Our other lizards hub and the sheltopusik’s own care guide walk through that process step by step. Welfare matters just as much as legality. A wild caught reptile, even one collected legally under permit, faces real stress from capture and transport, and mortality in the first months runs measurably higher than for captive bred animals.

Zoos and accredited wildlife centers that display the other groups almost always acquired them through rescue, permitted research, or breeding loan programs. That is worth knowing if you ever see one on exhibit and wonder how it got there.

Enclosure

For the sheltopusik, the one group routinely housed by private keepers, a single adult does well with roughly 36 by 18 inches of floor space or more. These are active, ground dwelling animals that benefit from room to move.

A secure, tight fitting lid matters, since sheltopusiks are strong and persistent at pushing against loose lids. Substrate should hold a little moisture and allow some digging. A mix of coconut fiber, cypress mulch, and topsoil, kept several inches deep, works well for most keepers.

Hides at both the warm and cool ends let the lizard thermoregulate without giving up cover. A shallow water dish large enough to soak in should stay available at all times.

Zoos and rehabilitation centers housing glass lizards, Anniella, or flap footed lizards generally mimic the animal’s natural substrate. That means sandy soil for the California species, and leaf litter and loose earth for glass lizards. Both textures matter for burrowing and thermoregulation.

Heating and lighting

A captive sheltopusik needs a gradient rather than one fixed number. A basking surface around 88 to 92 degrees Fahrenheit, an ambient warm side in the low 80s, and a cool end that drops into the low 70s at night all work well.

A digital thermometer with a probe at both ends is the only reliable way to confirm those numbers. Dial gauges and stick on strips are frequently inaccurate, so skip them.

Ultraviolet B lighting is somewhat debated for this group. Sheltopusiks spend much of their time under cover rather than basking in open sun, unlike a heliothermic lizard such as a bearded dragon.

Most experienced keepers still provide a modest UVB source, roughly 5 to 7 percent output, over a basking area the lizard can choose to use or avoid. An oral vitamin D3 supplement serves as a backup.

A 12 hour light and dark cycle year round approximates conditions across most of the sheltopusik’s native range. It also works well for the other groups kept in zoo settings.

Health

Respiratory infections are among the most common health problems in captive anguids. They usually trace back to an enclosure kept too cool or too damp for too long. Wheezing, bubbling at the nostrils, or an animal that stops eating are the warning signs.

A veterinary reptile exam and antibiotics prescribed by a vet are the standard treatment. Home remedies delay proper care and often let the infection spread further.

Mites are a frequent problem on newly acquired or wild caught individuals. They show up as tiny moving specks around the eyes, ear openings, and skin folds. Left untreated they cause anemia on top of the irritation itself.

Any new arrival should be quarantined and checked closely before joining an established collection. Metabolic bone disease from inadequate calcium or UVB exposure remains a risk for any insectivorous lizard, sheltopusiks included. It shows up as a soft jaw, spinal kinks, or tremors in advanced cases.

Consistent calcium dusting and appropriate UVB access from the start prevent nearly all cases. A reptile veterinarian should evaluate any animal already showing symptoms.

Breeding

Reproduction differs across the groups, and even within a single genus. Slow worms and Anniella give birth to live young, a strategy called ovoviviparity. A slow worm carries 3 to 20 young for 3 to 5 months, while Anniella produces 1 to 4 young, usually 2, after about 4 months.

Glass lizards and the sheltopusik lay eggs instead. An eastern glass lizard lays 5 to 17 eggs that hatch in 50 to 65 days, and the female stays in the nest with them. A sheltopusik lays 6 to 12 eggs that hatch in about 6 weeks.

Captive breeding of the sheltopusik happens on a small scale among specialist keepers. It is the source of the legal captive bred animals sold in the pet trade. The other groups here are essentially never bred in private captivity, both because collecting breeding stock is restricted and because their soil and climate needs are hard to replicate outside a research or zoo setting.

Cost

A captive bred sheltopusik from a specialist breeder typically runs about 150 to 400 US dollars, depending on age, size, and coloration. Setup costs for an enclosure, substrate, lighting, and heating commonly add another 150 to 300 dollars for a first time keeper.

Ongoing costs stay modest after that: feeder insects, supplements, and occasional bulb replacement. None of the other groups on this page have a legitimate retail price.

Glass lizards, Anniella, slow worms, and flap footed lizards are not lawfully sold as pets in most jurisdictions. Any listing offering a wild native limbless lizard for sale outside a permitted breeding program is a red flag worth reporting to the relevant wildlife agency.

Frequently Asked Questions

Is a legless lizard a snake?

No. It is a true lizard that lost its legs through evolution, while a snake belongs to a separate reptile lineage. Movable eyelids, visible ear openings, and a breakable tail are the fastest ways to tell them apart.

What is a legless lizard called if it isn’t a snake lizard?

“Snake lizard” is a common nickname, not a scientific name. It usually points to one of several unrelated groups: glass lizards, slow worms, the sheltopusik, Anniella, or Australia’s flap footed lizards.

Can you legally keep a legless lizard as a pet?

In most places, only the sheltopusik has an established legal pet trade, and only when captive bred by a licensed breeder rather than caught in the wild. Glass lizards, slow worms, Anniella, and flap footed lizards are protected native wildlife across most of their range.

How big does a legless lizard get?

Size depends entirely on the group. Anniella stays around 8 inches, an eastern glass lizard runs 18 to 42 inches, and the sheltopusik can reach 3 to 4 feet including its long tail.

Do they bite?

They can bite if handled roughly or mistaken for a threat, though most species have small teeth built for insects rather than defense. A bite from a sheltopusik can pinch but rarely breaks skin on an adult human hand.

Why did legless lizards lose their legs?

Researchers link limb loss to burrowing and moving through dense vegetation or loose soil, where a long body meets less drag than one with sprawling legs. That advantage applies across many unrelated lizard lineages, which is why leglessness evolved more than once.