AnimaliaIUCN LCIn Progress Recent Sighting

Hyalinobatrachium fleischmanni

Fleischmann's Glass Frog

Boettger, 1893

Detailed Texts Multi-lang

A small, delicate anuran, notable for its transparent ventral skin that allows its internal organs to be observed. Its back is a bright lime green with yellowish spots, which allows it to camouflage effectively among the leaves of riparian vegetation.

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Julia Trouin

Taxonomy

PhylumChordata

ClassAmphibia

OrderAnura

FamilyCentrolenidae

GenusHyalinobatrachium

Taxonomic AuthorityBoettger, 1893

Ecology & Status

Origin

Native

Population Trend

Stable

Breeding Season

Year Round

Trophic Role

Insectivore

Recent Sightings

Yes

Habitat Summary Multi-lang

Lives strictly along crystal-clear water streams in tropical jungles and cloud forests. It is a mostly arboreal species that prefers to perch on the underside of leaves above the water.

Behaviour Multi-lang

Nocturnal species highly dependent on humidity. Its behavior focuses on defending territories along the stream and constant care of the egg clutch during the night.

Social Activity Multi-lang

Solitary, except during the breeding season. Males are intensely territorial, emitting constant calls and fighting physically with other males for control of the best leaves for nesting.

Feeding Guild Multi-lang

Ambush predator. Waits patiently on the underside of the leaf for an insect to land or fly nearby, then lunges with a calculated jump to capture it.

Trophic Chain Details Multi-lang

Insectivore. Feeds on small flying insects and arachnids found in the low arboreal vegetation, capturing them with quick and precise movements during the night.

Reproductive Behaviour Multi-lang

Oviparous species. The female deposits her eggs in a gelatinous mass on the underside of leaves hanging over streams. After hatching, the tadpoles fall into the water to complete their development.

Physical Measures

Length (cm)

1.8 - 2.5 cm

Weight (Grams)

1 g - 2 g

Offspring per cycle15 - 30

Sexual DimorphismYes

Lifespan

Sexual Maturity

1 - 2 Years

Gestation / Incubation

1 - 2

Lifespan Estimated

Males2 - 4 Years

Females2 - 4 Years

Sexual Dimorphism

Males Multi-lang

Males are slightly smaller and possess developed vocal sacs, as well as humeral spines on their front limbs, which they use to fight against other males in territorial disputes.

Females Multi-lang

Females are larger in size and lack humeral spines. Their structure is more voluminous, facilitating the production of the egg mass necessary for reproduction.

Evolutionary Adaptations Multi-lang

Ventral Transparency: This unique adaptation reduces its visibility against the leaf on which it rests when illuminated from above, minimizing the contrast of its silhouette to predators.

Main Threats Multi-lang

Water Pollution: The sensitivity of its eggs and tadpoles to pesticides and sediments in stream water puts its reproductive success at risk in agricultural areas.

Interesting Facts Multi-lang

Male Parental Care: The male dedicates a large part of its energy to patrolling and protecting the egg clutch on the underside of leaves, defending it against predatory insects and preventing them from drying out through constant wetting.