
Source: Wikimedia Commons
Sauromalus ater
A large, flat-bodied, round-bellied lizard of rocky North American desert, reaching 51 cm. When threatened it retreats into a rock crevice and inflates its lungs to wedge itself in place so that a predator cannot pull it out.
Sauromalus ater is a large iguanid lizard of the Sonoran and Mojave Deserts of North America. Colour varies with locality, age and sex: adult males have black head, shoulders and pelvic region with a light tan, brown-speckled midbody, while adult females are brownish with scattered dark red spots. Juveniles carry four or five broad bands on the body and three or four on the tail, which males lose with age. Harmless to people, it runs from threats into rock crevices and then inflates its lungs with a gular pump, distending its body so that it is wedged firmly in place and cannot be pulled out. It is diurnal and spends much of the morning basking, changing its basking posture with the season. Males are seasonally and conditionally territorial, communicating with push-ups, head-bobbing and gaping. It is primarily herbivorous, eating creosote bush flowers, leaves and fruit.
Source: Wikipedia (CC BY-SA 4.0)
The Common Chuckwalla lives Up to about 30 years.
The Common Chuckwalla grows to Up to 51cm total length and 0.9kg.
It reaches 51 cm in total length and 0.9 kg in weight, with a flattened body, rounded belly and a wide-based, blunt-tipped tail.
Origin
The Sonoran and Mojave Deserts of the south-western United States and north-western Mexico
Lifespan
Up to about 30 years
Size
Sources: ReptiFiles: Common Chuckwalla Care Sheet / The Bio Dude: Chuckwalla Caresheet and Bioactive Habitat Maintenance / Wikipedia (English) / Reptile Database
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Accepted name: Sauromalus ater Duméril, 1856
Synonyms: Sauromalus obesus Baird, 1858, Sauromalus australis Shaw, 1945, Sauromalus shawi Cliff, 1958
Authority databases: GBIF · Reptile Database
Nomenclature follows global taxonomic authority databases.
Not listed in the CITES appendices (not registered in Species+). While Sauromalus varius of the same genus is listed in Appendix I, this species is not subject to listing. It is neither a specially designated animal listed in the regulations under the Act on the Welfare and Management of Animals nor a specific alien species under the Alien Species Act.
Sources: CITES Appendices (species not listed) / IUCN Red List
Regulations may change. Always verify the latest information with the relevant authorities.
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Up to 51cm total length and 0.9kg
Humidity
15〜65%
Mainly plant matter such as leaves, flowers and fruit, with occasional insects
As a desert lizard it needs a very warm basking site: a basking surface of 43-52C, a cool zone of 26-31C and night-time temperatures above 18C. Humidity anywhere in the range 15-65 per cent is considered acceptable. Its UVB requirement is high, with a target UV index of 4.5-6.0 at the basking site.
A minimum enclosure of about 120 x 60 x 60 cm is recommended even for one animal, and larger is better. Build a Retes stack of flat stones or boards with spacers, giving it secure crevices where it can choose its own basking temperature. Heat mats, heat tape and hot rocks are not appropriate basking heat sources.
It is primarily herbivorous, eating leaves, flowers and fruit and occasionally insects. Build the captive diet around leafy greens and flowers. Any plants added to the enclosure must be non-toxic, as they will be nibbled.
It is harmless to people and, when startled, retreats into rock crevices rather than attacking. Males must never be housed together. If keeping more than one, add at least 30 cm to the length and width per extra animal and provide several basking sites and hides to reduce competition.
The species is not listed in the CITES appendices and has no Species+ entry; its congener Sauromalus varius is on Appendix I, but this species is not. It is neither a specified animal nor an invasive alien species under Japanese law. It brumates in winter in the wild, and reducing winter temperatures and day length in captivity is recommended practice.
Intermediate. This is an intermediate-level species. Some prior experience and knowledge of environmental management are recommended.
The average lifespan of Common Chuckwalla is Up to about 30 years. With proper care and nutrition, they can live a long and healthy life.
Common Chuckwalla typically reaches Up to 51cm total length and 0.9kg as an adult. Size may vary depending on care conditions and individual genetics.
Common Chuckwalla feeds on: Mainly plant matter such as leaves, flowers and fruit, with occasional insects. Aim for a balanced diet with appropriate feeding frequency.
The price of Common Chuckwalla varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: September 16, 2026