Balanus trigonus

Triangle Barnacle

As recorded: Balanus trigonus Darwin, 1854

Animalia › Arthropoda › Maxillopoda › Sessilia › Balanidae

Balanus trigonus observed alive

Since 2000, iNaturalist observers have recorded 831 research-grade sightings in the wild, most recently on 2026-10-17.

2026-10-17

Opito Bay Beach, Whitianga, Waikato, NZ

(c) nzfernbird, some rights reserved (CC BY-NC)

2026-08-28

Christchurch City, Canterbury Region, New Zealand

(c) Mac Durning, some rights reserved (CC BY-NC)

2026-08-24

Santa Cruz, EC-GA, EC

(c) Billy Bensted-Smith, some rights reserved (CC BY-NC)

2026-08-22

Sanibel, FL, US

(c) diego, some rights reserved (CC BY-NC)

2026-08-08

Καλαμαριά, Ελλάδα

(c) Platon Kleanthidis, some rights reserved (CC BY-NC)

2026-08-06

Florida, US

(c) familiarjumpingspider, some rights reserved (CC BY)

Observations and photos from iNaturalist, shown only when openly licensed.

Balanus trigonus. BPBM 244. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 35415815. Accessed via explore.bishopmuseum.org/specimens/b/244.