vs Colombian Small-eared Shrew

Achroonema proteiforme compared with Cryptotis colombiana

Key Differences

• is Not Evaluated while Colombian Small-eared Shrew is Least Concern.

Taxonomic Classification

Rank		Colombian Small-eared Shrew
Kingdom	Bacteria (Bacteria)	Animalia (Animals)
Phylum	Bacteroidota (Bacteroidota)	Chordata (Chordates)
Class	Bacteroidia (Bacteroidia)	Mammalia (Mammals)
Order	Sphingobacteriales (Sphingobacteriales)	Soricomorpha (Soricomorpha)
Family	Pelonemataceae	Soricidae
Genus	Achroonema	Cryptotis
Species	Achroonema proteiforme	Cryptotis colombiana

Conservation Status

NE — Not Evaluated

Colombian Small-eared Shrew

LC — Least Concern

Physical Characteristics

Attribute		Colombian Small-eared Shrew
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Sweden.

Colombian Small-eared Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Achroonema proteiforme is a colorless, gliding filamentous bacterium found in freshwater sediments and organic-rich muds. It belongs to a group of bacteria that degrade organic matter in anoxic or microaerobic benthic habitats.

Colombian Small-eared Shrew

<em>Cryptotis colombiana</em>, the Colombian small-eared shrew, is a diminutive insectivorous mammal belonging to the family Soricidae, endemic to Colombia. This species typically inhabits montane environments, including humid cloud forests and high-altitude grasslands known locally as páramo, where it forages actively through leaf litter and soil for invertebrate prey. Small-eared shrews of the genus <em>Cryptotis</em> are characterised by their notably reduced external ears, high metabolic rates, and nearly constant activity cycles driven by the energetic demands of maintaining body temperature. <em>Cryptotis colombiana</em> is currently assessed as Least Concern by the IUCN, suggesting that its population is relatively stable within its Colombian range. Despite this status, Andean shrews face ongoing pressures from land conversion, cattle grazing in páramo ecosystems, and climate-driven shifts in vegetation zones. The species contributes to soil aeration and invertebrate population regulation within its montane habitat. Biological traits of this species remain poorly documented in the scientific literature.