Masked spiny lizard (Acanthosaura crucigera)
Agamas · Difficulty: Intermediate
Key facts and care guidance for Masked spiny lizard (Acanthosaura crucigera) (origin: Myanmar, Thailand, West Malaysia and Cambodia; hill and montane forests). Adult size around approx. 22–25 cm total length (males ~25 cm, females ~21–23 cm). Life expectancy approx. 8–10 years. The values below are carefully researched guidance.
Short answers
Masked spiny lizard: How big does the enclosure need to be?
80×60×100 cm for one adult animal (arboreal, height over length).
Masked spiny lizard: What temperature does it need?
Daytime 24–27 °C, basking spot local warm spot up to 30 °C (sensitive to heat, keep the enclosure below 30 °C), at night 18–21 °C.
Masked spiny lizard: Does it need UVB lighting?
UVB: UVB recommended (a forest dweller, Ferguson zone 1–2, UV index 1–3; a 6 % T5 tube).
Masked spiny lizard: How long do they live?
Life expectancy: approx. 8–10 years.
Masked spiny lizard: Is it suitable for beginners?
Rather not – it is considered an intermediate species (difficulty: Intermediate).
Climate
- Daytime temperature
- 24–27 °C
- Night temperature
- 18–21 °C
- Basking spot
- local warm spot up to 30 °C (sensitive to heat, keep the enclosure below 30 °C)
- Humidity
- 70–80 % by day, up to 90–100 % at night
- UVB
- UVB recommended (a forest dweller, Ferguson zone 1–2, UV index 1–3; a 6 % T5 tube)
Enclosure
- Minimum size
- 80×60×100 cm for one adult animal (arboreal, height over length)
- Substrate
- Coco humus or forest floor with leaf litter and moss, plus a drainage layer
Feeding
- Food
- Insectivorous: earthworms (preferred), crickets, house crickets, roaches, larvae; dusted with calcium and D3
- Feeding interval
- adults 2–3×/week, juveniles daily to every other day
Key facts
- Adult size
- approx. 22–25 cm total length (males ~25 cm, females ~21–23 cm)
- Life expectancy
- approx. 8–10 years
- Origin
- Myanmar, Thailand, West Malaysia and Cambodia; hill and montane forests
- Protection status
- Not listed under CITES (as far as research shows); often wild-caught – look for captive breeding and proof of origin
- Brumation
- No real winter dormancy. For breeding stimulation, a cooler, drier period of 6–8 weeks with shorter lighting (about 11 instead of 13 hours) and night-time values around 20 °C is enough. Even then it should not go permanently below 21 °C.
- Cohabitation
- Territorial. Keeping them singly is the standard; a harem of one male plus several females is possible in a large, structured enclosure; NEVER two males
Notes
The "crucifix lizard". One of the longest-kept species in the genus. Gravid females can become aggressive. No heat rock or strong spot is needed (a forest dweller).
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Related species
- Bintang mountain horned lizard (Acanthosaura bintangensis) – Intermediate
- Short-legged horned lizard (Acanthosaura brachypoda) – Intermediate
- Brown pricklenape (Acanthosaura lepidogaster) – Intermediate
- Cardamom mountain horned lizard (Acanthosaura cardamomensis) – Intermediate
- Crowned pricklenape (Acanthosaura coronata) – Intermediate
- Golden pricklenape (Acanthosaura capra) – Intermediate
- Natalia's pricklenape (Acanthosaura nataliae) – Intermediate
- Phong Dien pricklenape (Acanthosaura phongdienensis) – Intermediate
What you need to start
To keep Masked spiny lizard (Acanthosaura crucigera) you typically need: a suitable enclosure (80×60×100 cm for one adult animal (arboreal, height over length)), substrate (Coco humus or forest floor with leaf litter and moss, plus a drainage layer), a heat source with a thermostat, UVB lighting, thermometer and hygrometer, a water dish and hides. You will find equipment in the Reptoria marketplace.
The complete, interactive care database is in the Reptoria app.
Last updated: 9 October 2026 · Editor: Reptoria editorial team · Sources include: reptile-database.reptarium.cz, Wikipedia EN, thainationalparks.com, BML-Gutachten Mindestanforderungen Reptilien 1997 (amtlich), EU-Verordnung 2026/1383 (Anhang A-D, amtlich)
All values are non-binding guidance and do not replace expert advice. Research thoroughly from several sources before acquiring and keeping an animal, and observe the applicable law (species and animal protection in particular).