Head to head
Spectacled Porpoise vs Commerson's Dolphin
Spectacled Porpoise
VS Commerson's Dolphin
Both are small, boldly marked marine mammals of cold Southern Hemisphere waters, but one is rarely observed while the other is a familiar sight.
| Spectacled Porpoise | Commerson's Dolphin | |
|---|---|---|
| Scientific name | Phocoena dioptrica | Cephalorhynchus commersonii |
| Distinguishing feature | A black eye patch ringed in white | A bold black-and-white body pattern |
| Visibility | Rarely observed alive at sea | Frequently observed, popular for wildlife watching |
| Range | Scattered cold Southern Hemisphere waters | Southern tip of South America, plus a Kerguelen population |
| Conservation status | Data Deficient | Least Concern |
| Population trend | Unknown | Stable |
| Behaviour | Not well documented | Known for surface acrobatics |
| Habitat | Ocean | Coastal, ocean |
Spectacled Porpoise vs Commerson's Dolphin: common questions
Which one is more frequently seen by observers?
Commerson's dolphin is seen far more often, frequently observed performing surface acrobatics, unlike the spectacled porpoise, which is rarely spotted alive and known mostly from strandings.
Which one has a nickname based on its colouring?
Commerson's dolphin has this nickname, called the skunk dolphin for its bold black-and-white pattern, though the spectacled porpoise's own black-and-white eye patch is similarly striking.
Which one is classified as Data Deficient?
The spectacled porpoise is classified this way, reflecting how little is known about its population, while Commerson's dolphin is classified as Least Concern with a well-documented, stable population.