Aceramarca Gracile Opossum vs Cliff Chirping Frog

Gracilinanus aceramarcae compared with Eleutherodactylus marnockii

Taxonomic Classification

Rank	Aceramarca Gracile Opossum	Cliff Chirping Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Didelphimorphia (Didelphimorphia)	Anura (Frogs & Toads)
Family	Didelphidae	Eleutherodactylidae
Genus	Gracilinanus	Eleutherodactylus
Species	Gracilinanus aceramarcae	Eleutherodactylus marnockii

Evolutionary Relationship

Aceramarca Gracile Opossum and Cliff Chirping Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Aceramarca Gracile Opossum

LC — Least Concern

Cliff Chirping Frog

LC — Least Concern

Physical Characteristics

Attribute	Aceramarca Gracile Opossum	Cliff Chirping Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Aceramarca Gracile Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Cliff Chirping Frog

Habitat

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

Range

Found in Mexico.

Aceramarca Gracile Opossum

The Aceramarca Gracile Opossum (Gracilinanus aceramarcae) is a species in the genus Gracilinanus. It is currently classified as Least Concern on the IUCN Red List. It typically inhabits diverse terrestrial and aquatic ecosystems.

Cliff Chirping Frog

The Cliff Chirping Frog, Syrrhophus marnockii (also known as Eleutherodactylus marnockii), is a small terrestrial frog in the family Eleutherodactylidae native to the Edwards Plateau and adjacent areas of central Texas in the United States and northern Mexico. This tiny frog, typically only 2–3 cm in length, is adapted to rocky limestone terrain, hiding in crevices, under rocks, and in the thin soil pockets on cliff faces, rocky outcrops, and canyon walls. The species is named for its high-pitched, insect-like chirping calls produced by males, particularly on humid nights following rainfall. Unlike many frogs, the Cliff Chirping Frog undergoes direct development: eggs are laid in moist rock crevices and develop directly into miniature froglets without a free-living aquatic larval stage, eliminating dependence on standing water for reproduction. Diet consists of small arthropods, insects, and other invertebrates encountered in rocky microhabitats. The species is cryptic and rarely seen but can be abundant in suitable habitat on the Edwards Plateau, an area of karst limestone geography. It is currently assessed as Least Concern by IUCN, with populations considered stable across its rocky limestone range.