Rana de Cristal de Cochran vs Rana de Cristal de Anillos

Nymphargus cochranae compared with Nymphargus ignotus

Key Differences

• Rana de Cristal de Cochran is Vulnerable while Rana de Cristal de Anillos is Least Concern.

Taxonomic Classification

Rank	Rana de Cristal de Cochran	Rana de Cristal de Anillos
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class same	Amphibia (Amphibians)	Amphibia (Amphibians)
Order same	Anura (Frogs & Toads)	Anura (Frogs & Toads)
Family same	Centrolenidae	Centrolenidae
Genus same	Nymphargus	Nymphargus
Species	Nymphargus cochranae	Nymphargus ignotus

Evolutionary Relationship

Rana de Cristal de Cochran and Rana de Cristal de Anillos share a common ancestor at the Genus level: Nymphargus.

Conservation Status

Rana de Cristal de Cochran

VU — Vulnerable

Rana de Cristal de Anillos

LC — Least Concern

Physical Characteristics

Attribute	Rana de Cristal de Cochran	Rana de Cristal de Anillos
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Rana de Cristal de Cochran

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Colombia. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Rana de Cristal de Anillos

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Colombia.

Rana de Cristal de Cochran

The Cochran frog (Nymphargus cochranae) is a small glass frog in the family Centrolenidae, native to the cloud forests of the western and central Andes in Colombia. Like other centrolenid frogs, it is characterised by semi-transparent or translucent ventral skin through which internal organs — including the heart, liver, and digestive tract — are visible, a feature that gives the family its common name. The species inhabits humid montane rainforest along streams at elevations typically between 1,500 and 2,800 metres, where males call from vegetation overhanging fast-flowing streams to attract females. Eggs are deposited in gelatinous masses on leaves or rocks above the water; upon hatching, tadpoles drop into the stream below and develop in the current-swept environment. Nymphargus cochranae is classified as Vulnerable by the IUCN, primarily due to ongoing deforestation and degradation of cloud forest habitats driven by agricultural expansion, cattle ranching, and coca cultivation across its Colombian Andean range. Glass frogs are additionally sensitive to stream water quality, making them useful bioindicators of watershed health. The species was named in honour of the eminent American herpetologist Doris Mable Cochran of the Smithsonian Institution, who made foundational contributions to Central and South American amphibian taxonomy in the mid-twentieth century. Continued habitat protection and reforestation efforts are critical for its long-term survival.

Shared Countries

Both species can be found in 1 countries:

🇨🇴 Colombia