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Blunt-headed Burrowing Frog
Glyphoglossus molossus
A specialized microhylid frog (7.5 cm) native to Southeast Asia (Thailand, Myanmar, Vietnam, Cambodia). Characterized by its extremely swollen spherical body that inflates like a balloon and fossorial, leaf-litter dwelling habits.
- Taxonomy
- Class:AmphibiaOrder:AnuraFamily:MicrohylidaeSubfamily:MicrohylinaeGenus:GlyphoglossusSpecies:Glyphoglossus molossus
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Environment
Terrestrial
Humidity
60 - 80 %
Day temperature
27 °C
Night temperature
22 °C
Ambient temperature
27 °C
Minimum enclosure
>= 45 L
UVB
Low
Species description
Geographical Origin and Habitat: Native to Southeast Asia (Thailand, Myanmar, Vietnam, Cambodia). It primarily occurs in open dry forests and agricultural fields with sandy soils suitable for digging. It lives mostly concealed within leaf litter or burrowed inside moist soils.
Taxonomy and Genetics: Belongs to the Microhylidae family, genus Glyphoglossus. This group consists of narrow-mouthed frogs highly adapted to specific fossorial or semi-arboreal microhabitats.
Behavior and Habits: Primarily nocturnal and secretive. It spends the daytime hours buried under the substrate or hidden beneath leaf litter, emerging to forage and breed during heavy seasonal rains.
Morphology: Features a plump, rounded body reaching about 7.5 cm. Skin texture ranges from smooth to warty with cryptic colors. Males are smaller than females and exhibit distinct vocal sacs during the breeding season.
Care, breeding and tankmates
Terrarium Setup: Provide a horizontal terrarium with a deep (10-15 cm) layer of loose, damp substrate such as coconut fiber and sterile peat moss. Add cork bark hides, dry leaves, and flat shelters to create shaded spots.
Lighting and Heating: Maintain daytime temperatures around 27.0°C and night temperatures at 22.0°C. Provide a 12-hour light cycle; a low-intensity UVB source is recommended to support general health.
Humidity and Hydration: Maintain relative humidity between 60.0% and 80.0%. Mist regularly with dechlorinated water and supply a very shallow water dish to prevent drowning risks.
Feeding and Supplementation: Strictly insectivorous. Offer gutloaded crickets, roaches, fruit flies, and small worms. Dust prey with high-quality calcium and vitamin D3 twice a week to support skeletal structure.
Compatibility: Best kept in a species-specific setup. Small groups of similar size can cohabitate, avoiding competition or accidental cannibalism.
Health and Common Diseases: Highly susceptible to bacterial skin infections (red leg disease) if ventilation is poor or the substrate is soiled. Regularly check skin condition and hydration levels.
Geographic Origin and Distribution
Native to Southeast Asia (Thailand, Myanmar, Vietnam, Cambodia). It primarily occurs in open dry forests and agricultural fields with sandy soils suitable for digging. It lives mostly concealed within leaf litter or burrowed inside moist soils.
Origin
South and Southeast AsiaEast Asia
Amphibian profile
- Diet
- Insectivore
- It is highly specialized for a diet of subterranean termites and ants. It uses its distinct, blunt snout and powerful limbs to dig into insect mounds and capture massive amounts of prey. Its intense feeding frenzy usually happens during the rainy season.
- Life expectancy
- 5-7 years
- With proper care, the indicative life expectancy is 5-7 years.
- Adult size
- 5 cm
- The catalog's scalar value is 5 cm. The AmphiBIO v1 source reports a maximum adult measurement of 5 cm for this species, recorded as snout–vent length (SVL). These figures are not interchangeable: the first is the profile's editorial reference, whereas the second is a published maximum under a specific measurement convention; differences among sources can reflect sex, population, life stage and measuring method.
- Lifestyle/Microhabitat
- Fossorial
- They are predominantly fossorial, spending most of their time burrowed underground to conserve moisture and avoid predators.
- Activity cycle
- Nocturnal
- This species is primarily nocturnal, remaining hidden during the day in leaf litter or burrows and emerging at night to forage for food.
- Sociality
- Solitary
- It spends the majority of the year buried deep underground to avoid desiccation during the dry season. When threatened, this frog can inflate its body dramatically to look like a balloon. This startled posture makes it incredibly difficult for predators to swallow.
- Reproduction
- Oviparous
- They are explosive breeders that congregate in temporary rain pools immediately after the first heavy monsoon showers. Males float on the water surface while emitting loud, low-pitched calls. Eggs are laid in large gelatinous masses that quickly hatch into tadpoles.
- Toxicity
- Toxic
- It is not toxic, though it relies heavily on its startling defensive posture to survive. The bloated appearance and slippery, mucus-covered skin serve as highly effective physical deterrents. It poses no threat to humans.
- Life stage
- Adult only
- The aquatic tadpoles develop incredibly rapidly in shallow, ephemeral pools to avoid drying out. They soon morph into miniature burrowing frogs. The juveniles immediately dig into the soil before the dry season returns.
- Handling tolerance
- Display only
- Due to their sensitive skin and potential stress from handling, they should be considered a display-only species.
- Brumation
- Not required
- They do not require a brumation period, maintaining a steady metabolic rate year-round in their native tropical habitats.
- Molting
- Periodic
- Shedding occurs periodically and is facilitated by high environmental humidity; the shed skin is typically consumed immediately by the animal.
Image gallery
Licensed images linked to the species or, when marked, to the closest representative taxon.
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