Common Neacomys vs Sharp-tooth smooth hound

Neacomys spinosus compared with Mustelus dorsalis

Key Differences

• Common Neacomys is Least Concern while Sharp-tooth smooth hound is Vulnerable.

Taxonomic Classification

Rank	Common Neacomys	Sharp-tooth smooth hound
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Chondrichthyes (Cartilaginous Fish)
Order	Rodentia (Rodents)	Carcharhiniformes (Ground Sharks)
Family	Cricetidae	Triakidae
Genus	Neacomys	Mustelus
Species	Neacomys spinosus	Mustelus dorsalis

Evolutionary Relationship

Common Neacomys and Sharp-tooth smooth hound share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Common Neacomys

LC — Least Concern

Sharp-tooth smooth hound

VU — Vulnerable

Physical Characteristics

Attribute	Common Neacomys	Sharp-tooth smooth hound
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Neacomys

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Sharp-tooth smooth hound

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Common Neacomys

<em>Neacomys spinosus</em>, the common neacomys or spiny neacomys, is a small rodent in the family Cricetidae found in South America. This ground-dwelling mouse is characterized by its distinctively spiny fur, an adaptation that may provide protection against predators. <em>Neacomys spinosus</em> typically inhabits tropical lowland and montane forests, forest edges, and adjacent scrubby vegetation in northwestern South America, with its geographic range including Colombia and surrounding countries. The species forages on the forest floor and in low vegetation, and is believed to consume seeds, plant material, and invertebrates, although specific dietary data are limited. It is currently assessed as Least Concern by the IUCN, with populations considered stable across its range, though ongoing deforestation in the Amazonian and Andean foothills may present long-term threats. Biological traits such as lifespan, body size, and diet remain poorly documented for this species across its full range. <em>Neacomys spinosus</em> plays a role in seed dispersal and forms part of the prey base for small mammalian and avian predators in its tropical forest ecosystems.