Fauna
Reptile

Serrated Casquehead Iguana

Laemanctus serratus

Also known as Serrated Casquehead Lizard, Serrated Helmeted Iguana, Serrated Casque-headed Lizard

Serrated casquehead iguanas spend their lives perched motionless along slender branches in lowland tropical forests, blending flawlessly into leafy canopies with their lime-green scales and elongated bodies. Their defining helmet-like casque projects backward from the skull, fringed with triangular serrations that break up their silhouette from scanning predators. When alarmed, they rely on rigid crypsis or execute clumsy, hurried scrambles through tangled foliage rather than swift leaps.

ArborealCamouflagedReptile
Serrated Casquehead Iguana reference
(c) Sebastián de Jesús Herrera Buenfil, some rights reserved (CC BY) · cc-by
—observations
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Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Key facts
Diet & preyGrasshoppers, Crickets, Caterpillars
Predators
  • Arboreal snakes
  • Birds of prey
  • Small carnivorous mammals
ThreatsDeforestation, habitat fragmentation, and local collection for the pet trade
HabitatsLowland tropical rainforests, moist semi-deciduous forests, and forest edges
Life span5–10 years
Classification
  1. FamilyCorytophanidae
  2. GenusLaemanctus
  3. SpeciesLaemanctus serratus
Range & activity
Range data is not available yet.
Safe observation
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Harmless and docile; safe to observe from a normal distance.
Responsible observation
  • Spotting: Scan thin, horizontal branches several meters up where individuals freeze along twigs.
  • Observation: Move slowly to avoid triggering their freeze response or sudden clumsy escape leaps.
  • Field Care: Keep a respectful distance, as their extremely long, thin tails are fragile.
Related species
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