Calumma crypticum
Calumma crypticum, also known as the cryptic chameleon or blue-legged chameleon, is a species of chameleon endemic to eastern Madagascar. This arboreal lizard inhabits humid forests at mid-altitudes and is characterized by its variable coloration, often featuring rich browns, blues, and greens with distinctive blue markings on its legs. Males possess a longer snout with a horn-like protrusion, distinguishing them from females.
Key Facts
- ›Endemic to eastern Madagascar, found between 1,050 and 1,850 meters above sea level.
- ›Arboreal species inhabiting humid forests.
- ›Distinctive blue markings are often present on its legs.
- ›Males have a horn-like protrusion on their snout, absent in females.
- ›Coloration is variable, adapting to surroundings, temperature, and light levels.
- ›Assessed as 'Least Concern' by the IUCN due to its widespread distribution.
Cryptic Chameleon, Blue-Legged Chameleon
Madagascar
- Grows To Approximately 12 cm In Length.
- Features Large Flap-Like Lobes At the Back of the Head.
- Sexually Dimorphic: Males Have A Longer Snout With A Horn-Like Protrusion On the Upper Surface, Which Females Lack.
- Coloration Is Variable, Typically Including Rich Browns, Blues, and Greens, Adapting To Surroundings.
- Legs Are Often Marked With Blue.
Insects
- Arboreal
- Color Change For Camouflage and Thermoregulation
Habitat Clearance For Agriculture
About Calumma crypticum
Calumma crypticum, commonly known as the cryptic chameleon or blue-legged chameleon, is a species of chameleon found exclusively in eastern Madagascar. This species was formally described in 2006 and later confirmed as genetically distinct from the short-horned chameleon (Calumma brevicorne) in 2007.
Description and Characteristics
The cryptic chameleon typically reaches a length of around 12 cm. A notable feature is the presence of large, flap-like lobes at the back of its head. The species exhibits sexual dimorphism; males possess a more elongated snout adorned with a horn-like protrusion on its upper surface, which is absent in females. Like other chameleons, Calumma crypticum can change its color, with its usual vibrant palette including rich browns, blues, and greens, often displaying distinctive blue markings on its legs. This color variability is influenced by its surroundings, ambient temperature, and light levels.
Distribution and Habitat
Calumma crypticum is endemic to the mid-altitude regions of eastern Madagascar, inhabiting humid forests at elevations ranging from 1,050 to 1,850 meters above sea level. Its natural range extends across the Tsaratanana Massif and the Ivakoany Massif. Although it is an arboreal species, its distribution can be patchy due to forest fragmentation caused by agricultural development in the central highlands. A notable subpopulation exists around Ambohitantely in the central west of the island.
Conservation Status
Despite facing threats from habitat clearance for agriculture, Calumma crypticum is considered a widespread species and is found within several protected areas. Its population is experiencing a gradual decline. However, due to its sufficient abundance, the International Union for Conservation of Nature (IUCN) has assessed its conservation status as 'Least Concern'.
Source: Wikipedia ↗
Frequently Asked Questions
What are the common names for Calumma crypticum?
Calumma crypticum is commonly known as the cryptic chameleon or the blue-legged chameleon. These names refer to its somewhat elusive nature and the characteristic blue markings often seen on its legs.
Where is Calumma crypticum found?
This species is endemic to eastern Madagascar. It inhabits mid-altitude regions, specifically found between 1,050 and 1,850 meters above sea level, with its range extending across the Tsaratanana and Ivakoany Massifs.
What does Calumma crypticum look like?
Calumma crypticum typically grows to about 12 cm in length and possesses large flap-like lobes at the back of its head. Its coloration is highly variable, usually a mix of rich browns, blues, and greens, and its legs are frequently marked with blue. Males are distinguished by a longer snout with a horn-like protrusion.
What is the habitat of the cryptic chameleon?
The cryptic chameleon is an arboreal species, meaning it lives in trees. It prefers humid forest environments at mid-altitudes within its native range in eastern Madagascar.
What is the conservation status of Calumma crypticum?
The International Union for Conservation of Nature (IUCN) has assessed the conservation status of Calumma crypticum as 'Least Concern'. This is due to its widespread distribution and presence in several protected areas, despite ongoing habitat loss.
Are there differences between male and female Calumma crypticum?
Yes, the species is sexually dimorphic. Adult males have a longer snout that features a horn-like protrusion on its upper surface, a feature that is absent in females.
Related Lizards
Calumma fallax
Calumma fallax, also known as the deceptive chameleon or short-nosed deceptive chameleon, is a species of chameleon native to eastern Madagascar. This medium-sized chameleon is found in mid-altitude forests and is characterized by its snout-to-vent length, with males and females reaching similar sizes. Its conservation status is currently listed as data deficient due to insufficient information.
Furcifer willsii
Furcifer willsii, commonly known as the canopy chameleon, is a species of lizard endemic to Madagascar. This arboreal species is characterized by its green and white coloration, sometimes with brown accents, and inhabits humid forests, often high in the canopy. While its population is believed to be declining, it is currently listed as Least Concern by the IUCN.
Lygodactylus bivittis
Lygodactylus bivittis, commonly known as the tiny scaled gecko, is a small lizard species endemic to Madagascar. It inhabits humid forests at mid-elevations and is characterized by its diurnal and arboreal lifestyle. The species is oviparous and faces threats from habitat loss.