Other animals › Balanidae
Pacific Acorn Barnacle
Balanus glandula
28 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
Thatched BarnacleSemibalanus cariosus
Little Brown BarnacleChthamalus dalli
Northern Acorn BarnacleSemibalanus balanoides
Pink Volcano BarnacleTetraclita rubescens
Striped BarnacleAmphibalanus amphitrite
Wrinkled BarnacleBalanus crenatus
Chthamalus fissus
Tooth BarnacleChthamalus dentatus
Study checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| Canada | 4,904 |
|---|---|
| British Columbia | 4,903 |
| United States | 4,421 |
| California | 2,712 |
| Washington | 1,718 |
| Oregon | 758 |
| Alaska | 456 |
| Argentina | 48 |
| Chubut | 25 |
| South Africa | 16 |
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 Pacific Acorn Barnacle with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.