Irrawaddy dolphin vs

Orcaella brevirostris compared with Pinnularia mesolepta

Key Differences

• Irrawaddy dolphin is Endangered while is Not Evaluated.

Taxonomic Classification

Rank	Irrawaddy dolphin
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (Chordates)	Ochrophyta (Ochrophyta)
Class	Mammalia (Mammals)	Bacillariophyceae (Bacillariophyceae)
Order	Cetacea (Whales & Dolphins)	Naviculales (Naviculales)
Family	Delphinidae (Oceanic Dolphins)	Pinnulariaceae
Genus	Orcaella	Pinnularia
Species	Orcaella brevirostris	Pinnularia mesolepta

Conservation Status

Irrawaddy dolphin

EN — Endangered

NE — Not Evaluated

Physical Characteristics

Attribute	Irrawaddy dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Habitat

Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Brazil, Norway, Portugal, Sweden, and Taiwan.

Pinnularia mesolepta is a freshwater diatom with a boat-shaped, symmetrical siliceous frustule and distinctive raphe canal along the cell axis. It inhabits benthic and epiphytic habitats in oligotrophic to mesotrophic freshwater lakes, streams, and bogs. This photosynthetic diatom forms part of the microbial biofilm community in freshwater habitats.