Guyanese arrowhead vs Pacific Spiny-rat

Sagittaria guayanensis compared with Proechimys decumanus

Key Differences

• Guyanese arrowhead is Least Concern while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Guyanese arrowhead	Pacific Spiny-rat
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Liliopsida (Monocots)	Mammalia (Mammals)
Order	Alismatales (Alismatales)	Rodentia (Rodents)
Family	Alismataceae	Echimyidae
Genus	Sagittaria	Proechimys
Species	Sagittaria guayanensis	Proechimys decumanus

Conservation Status

Guyanese arrowhead

LC — Least Concern

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

Attribute	Guyanese arrowhead	Pacific Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Guyanese arrowhead

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Distributed across Brazil, Colombia, Comoros, Madagascar, and United States.

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.