Red-Eyed Crocodile Skink
Tribolonotus gracilis
The 'mini-dragon' of the forest abyss. An incredibly fascinating Indonesian lizard that literally looks like an armored black dragon with a brilliant glowing orange ring around its eyes. Terrified of light and heat, it is a secretive, extremely shy creature that demands cool, dark, and perpetually soaked aqua-terrariums to survive.
Temperatura da água
22 - 26 °C
Ambiente
Terrestre / Semiaquático
Umidade
60 - 90 %
Temperatura diurna
24 - 27 °C
Temperatura ambiente
24 °C
Temperatura noturna
18 - 22 °C
Local para se aquecer
27 °C
Tamanho adulto
20 cm
Gabinete mínimo
>= 100 L
UVB
Ferguson 1
UVI
0 - 0,7 UVI
Descrição da espécie
Geographical Origin and Habitat: Exclusively inhabits the floors of the hyper-humid rainforests of New Guinea. They live deep in the mud, beneath thick layers of decaying leaf litter or debris, often venturing into small jungle streams. They almost never see direct sunlight, living in constant twilight.
Taxonomy and Genetics: Scincidae family (Skinks). There are no commercial morphs due to breeding difficulty (they lay only one egg at a time). Although it looks like a crocodile, it is actually a timid skink. It shares its family with the Blue-tongued Skink, but the two are polar opposites in almost everything (habitat, care, behavior).
Behavior and Habits: They are crepuscular/nocturnal reptiles, extremely slow, secretive, and prone to chronic terror. The antithesis of a handling pet: if picked up, they instantly freeze playing dead (thanatosis), or they will squeak softly, and in cases of total panic, emit audible vocalizations (barking), a rare trait in lizards. They must be observed, not touched. They love water and are excellent swimmers.
Morphology: They boast a stunning fantasy appearance: 7-8 inches (18-20 cm) long, the body is covered in thick black armor (osteoderms) and 4 rows of spiny dorsal scales, making them perfect replicas of tiny crocodiles or black dragons. The defining trait in adulthood is a brilliant fire-orange ring surrounding their huge eyes. Dimorphism is hidden: males have whitish porous pads under the toes of their hind legs (volar pores) and a white belly patch, which females lack.
Cuidado, criação e companheiros de tanque
Terrarium Setup: A highly elaborate but dimly lit aqua-terrarium (e.g. a 36x18x18 inch tank). The substrate is the vital core: it needs 4-6 inches (10-15 cm) of peat moss, coco coir, and sphagnum moss covered by an extremely deep layer of dry leaves and hollow cork bark. They must be able to bury themselves completely anywhere. A WATER FEATURE (taking up at least a third of the terrarium and 2-3 inches deep) is mandatory, as they regularly submerge to soak, molt, and hunt earthworms.
Lighting and Heating: HEAT KILLS THEM. They are damp undergrowth reptiles. The ideal is to keep the room between 73°F and 78°F (23-26°C). Any temperature above 82-84°F (28-29°C) will cause fatal heat stroke. Lighting must be very dim; a powerful blinding basking spotlight will keep them permanently hidden underground. Basking spot: max 80°F (27°C), provided via very low-wattage bulbs. UVB (low 2-5%) is recommended but must be heavily shaded by vegetation so the reptile can choose to expose itself voluntarily (crypto-basking).
Humidity and Hydration: They demand the wettest and most humid environment of almost any reptile (constant 80-100%). The enclosure must be heavily misted. If the dirt dries out or if side vents aridify the tank, the skink will suffer retained sheds that will act as tourniquets on its fragile toes or tail, leading to gangrene and necrosis of the eyeballs.
Feeding and Supplementation: Insectivorous and opportunistic. Often shy, they won't hunt in front of the owner, preferring easy or soft prey. Earthworms (chopped in bowls or in the water feature) are their prey of choice, alongside decapitated crickets, waxworms, and small snails. They will dig in the dirt to unearth insects. Supplement frequently with Calcium/D3 powder as the lack of strong UVB irradiation requires extra chemical support.
Compatibility: They form weak pairs (1 male and 1 female), and it is one of the few lizard species where parents tolerate and share underground burrows with a single hatchling (they lay only 1 colossal egg at a time, which they partially guard and incubate). Housing two adult males will lead to silent but lethal territorial biting fights in the dark.
Health and Common Diseases: Hyperthermia (heat stroke) is the number one assassin; crocodile skinks die like flies in the summer if kept in non-air-conditioned homes above 82°F (28°C). Handling stress leads to a total refusal of food. Eye infections or blindness occur if the humidity level drops below 60%, causing the eyelids to seal shut with dried retained skin.
Origem e distribuição geográfica
Exclusively inhabits the floors of the hyper-humid rainforests of New Guinea. They live deep in the mud, beneath thick layers of decaying leaf litter or debris, often venturing into small jungle streams. They almost never see direct sunlight, living in constant twilight.
Origem
África e MadagascarSul e Sudeste AsiáticoLeste AsiáticoAustrália, Nova Guiné e Oceania
Perfil de réptil
- Dieta
- Insectivore
- Primarily insectivorous, feeding on crickets, mealworms, roaches, and earthworms in the wild and captivity. Their diet should be appropriately sized and heavily dusted with calcium and vitamin supplements to maintain healthy bone structure. Occasional small grubs or snails can also be offered to provide dietary variety.
- Tamanho adulto
- 20 cm
- Estilo de vida/Microhabitat
- Terrestrial
- As a terrestrial and semi-aquatic species, they require a habitat that offers both high humidity and access to shallow water. They are excellent swimmers and often retreat to water when they feel threatened or need to cool down. Their lifestyle demands a forest floor setup with plenty of hiding spots and damp moss.
- Ciclo de atividades
- Crepuscular
- They are predominantly crepuscular and nocturnal, becoming most active during the early morning and late evening hours. During the day, they remain hidden in cool, damp microhabitats to avoid the heat and potential predators. This low-light activity pattern dictates their need for subdued lighting in captivity.
- Socialidade
- Gregarious
- They are known to be quite shy and secretive, often spending the majority of their time hiding under leaf litter or in burrows. When threatened, they may vocalize, play dead, or readily drop their tails as a defense mechanism. Due to their reclusive nature, they are not typically aggressive but will flee when startled.
- Reprodução
- Oviparous
- These skinks are oviparous and typically lay only one egg per clutch, though they may produce multiple clutches throughout the year. The eggs are quite large relative to the female's body size and are usually buried in moist substrate. Uniquely among many lizards, both parents exhibit some degree of egg guarding and parental care.
- Tolerância de tratamento
- Display only
- Crocodile skinks generally do not tolerate handling well and can easily become stressed if interacted with frequently. Handling should be kept to an absolute minimum to avoid triggering their flight response or causing them to drop their tails. It is best to treat them as display animals rather than pets meant for regular physical contact.
- Brumação
- They do not undergo true brumation as they originate from tropical rainforests with relatively stable year-round temperatures. However, they may show slight decreases in activity or appetite if there are minor seasonal temperature drops. It is important to maintain consistent warmth and humidity rather than inducing a cooling period.
- Muda
- Periodic
- Like other reptiles, they periodically shed their skin as they grow, though their shedding process might not always occur in one complete piece. High humidity is absolutely essential during this time to prevent stuck shed, particularly around their delicate toes and prominent crests. A humid hide filled with damp sphagnum moss can greatly assist them in shedding successfully.
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