Other animals › Balanidae
Triangle Barnacle
Balanus trigonus
26 photos
Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.
Photos you add are credited to you, and you keep the copyright.
Easily confused with
Striped BarnacleAmphibalanus amphitrite
Perforated BarnaclePerforatus perforatus
California BarnacleMegabalanus californicus
Red-striped Acorn BarnacleParaconcavus pacificus
Pink Volcano BarnacleTetraclita rubescens
Beaked BarnacleAustrominius modestus
Study checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| United States | 417 |
|---|---|
| Australia | 84 |
| California | 53 |
| New Zealand | 52 |
| New South Wales | 52 |
| North Carolina | 32 |
| Texas | 31 |
| Mexico | 28 |
| Auckland Region | 25 |
| Portugal | 18 |
Counts show where people looked, not only where it lives.
Traits
Physical
- ExoskeletonHas a hard external skeletonFrom its classification
Group and habits
- ParasiteDescends from a lineage whose members commonly live parasitically on another organism.From its classification
Classification
| Kingdom | Animals · Animalia |
|---|---|
| Phylum | Arthropods · Arthropoda |
| Class | Barnacles and Copepods · Hexanauplia |
| Order | Symmetrical Sessile Barnacles · Balanomorpha |
| Family | Balanidae |
| Genus | Rock-barnacles · Balanus |
Sources
- Names, taxonomy and observation counts: www.inaturalist.org
- Photos and recordings: the creator and source are on each one.
- How much to rely on each source
Remember the name next time.
Practise Triangle Barnacle with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.