Bluetail Monitor (Varanus doreanus)

Bluetail Monitor Varanus doreanus
Name	Bluetail Monitor
Name Lat.	Varanus doreanus
Family	Monitor Lizards
Family lat.	Varanidae
Order	Scaled Reptiles
Order lat.	Squamata
Origin	New Guinea, N-Australia
Habitat	Rainforest,mangroves
Diet	Insects, rodents, fish
Humidity	70-90 %
Behavior	Semi-aggressive
Keeping	Individual, pair
Care Level	Difficult
Reproduction	Oviparous
Housing	Humid terrarium
Life Span	10-15 years
Protection	CITES Appendix II; EU Annex B
Metric Units
Size	135-145 cm
Temperature	25-30 °C
Temperature Local	35 °C
Housing Size	300 x 120 x 120 cm
US Units
Size	53"-57"
Temperature	77-86 °F
Temperature Local	95 °F
Housing Size	120" x 45" x 45"

Distribution and habitat

The diurnal blue-tailed monitor lizards are common in New Guinea and northern Australia (Cape York). The good swimmers and climbers live in the tropical rainforests and mangrove swamps.

Maintenance

Recommended minimum dimensions for the terrarium, according to the size and number of animals

1-2 animals

5KRL x 2KRL x 2KRL (L x W x H)

Head-torso length (KRL) is measured on the largest animal. For each additional animal, increase the footprint by 15%. A terrarium of e.g. 300 x 120 x 120 cm is recommended, which should be placed in a quiet and vibration-free place

They need a spacious terrarium, structured with strong, horizontally mounted climbing branches, tree trunks, cork tubes and rock structures (hiding place and privacy screen), a 15-20 cm deep graveable substrate of sand-clay mixture to be able to build structures and a large water basin suitable for bathing. Part of the substrate should always be kept slightly moist, especially the lower sand layers. Once a day, preferably in the evening, the inside of the terrarium should be finely sprayed with water (humidity).

Temp. day: 25-30 °C

Temp. night: 20-24 °C

Temp. local: up to 35 °C

Humidity: 70-90

Thermostatically controlled floor heating is recommended. The lighting duration must be 10-12 hrs. They need high light intensity and daily UV irradiation as well as sunny places with radiant heat.

Diet

The predatory monitors eat everything they can overpower, but also carrion. The food supply consists of insects (crickets, grasshoppers, zophobas, etc.), small mammals, chicks, eggs (raw or cooked), fish, snails, etc., as well as meat from cattle and game, depending on their size. Commercially available ready-to-eat food is also readily accepted. Wax moths should rarely be fed in very small quantities because of their large fat content. It is important to add minerals and vitamins regularly (e.g. by dusting the feed). Young animals should be offered food daily, adults 3-4 times a week. Drinking water must always be available

A varied diet promotes health and prevents deficiency symptoms.

Reproduction and breeding

The sexes are difficult to distinguish. Reliable sex determination is possible only by radiography or endoscopy. The female lays 4-12 eggs in burrows she has dug herself. The incubation period is 160-170 days at a temperature of 26-32 °C. The young are 25-30 cm in size.

Species protection

The animal population must be reported in writing to the competent authority immediately after the start of keeping. Subsequently, all arrivals and departures must be reported.

Protection of species: WA Annex II; EU Annex B. The proof of purchase is the required proof of origin for the animal. Please keep it safe! Your pet store will be happy to provide you with further information.

Important

They need hiding places and according to their need for warmth sunny places with radiant heat, e.g. stones or branches irradiated with a spot. Males engage in comment fights at the beginning of the mating season. Especially adult animals tend to become obese, therefore a fasting period should be inserted occasionally

The quality of the food animals can be upgraded by giving them fruit and honey water.

The terrarium must have good ventilation without drafts and meet the species-specific needs. Measuring devices such as thermometers, hygrometers, etc. are necessary. The lighting has to correspond to the species-specific day-night rhythm and has to be placed in such a way that the animals cannot injure themselves. The terrarium should be locked in such a way that neither unauthorized persons can open it nor the animals can escape. Contamination must be removed regularly.

Further literature can be found in your pet store.

References

Text: petdata; Image: petdata 

Source: BMELV (1997): Tierschutzgutachten - Mindestanforderungen an die Haltung von Reptilien; ENGELMANN (2006): Zootierhaltung - Tiere in menschlicher Obhut: Reptilien und Amphibien, Harri Deutsch Verlag

• Gemäß § 21 Abs. 5 Tierschutzgesetz idgF