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Thalamita sima in life
In life — Four-lobed Swimming Crab, photographed by an iNaturalist observer, not this specimen. (c) Ondřej Radosta, some rights reserved (CC BY-NC), uploaded by Ondřej Radosta
BPBM 591Invertebrate Zoology

Thalamita sima

Four-lobed Swimming Crab

As recorded: Thalamita sima H.Milne Edwards, 1834

Animalia › Arthropoda › Malacostraca › Decapoda › Portunidae

Locality
[Northern] Hope Is.
Island
Queensland
Record type
Preserved specimen
2 Bishop specimens of Thalamita simaSpecies page ›

Thalamita sima observed alive

Since 2000, iNaturalist observers have recorded 133 research-grade sightings in the wild, most recently on 2026-08-29.

Thalamita sima observed 2026-08-29

2026-08-29

Singapore

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

Thalamita sima observed 2026-08-19

2026-08-19

Canning Hwy Before East St, East Fremantle WA 6158, Australia

(c) Cael Gallery, some rights reserved (CC BY-NC)

Thalamita sima observed 2026-07-18

2026-07-18

Port Hedland, AU

(c) Lando K, some rights reserved (CC BY-NC)

Thalamita sima observed 2026-07-16

2026-07-16

Central, Singapore

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

Thalamita sima observed 2026-07-14

2026-07-14

Pimpama Jacobs Well Rd, Jacobs Well, QLD, AU

(c) Indra Bone, some rights reserved (CC BY-NC)

Thalamita sima observed 2026-07-14

2026-07-14

3 Changi Ferry Rd, Access to coastal park connector, Singapore 499676

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

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

Cite this specimen

Thalamita sima. BPBM 591. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 39109491. Accessed via explore.bishopmuseum.org/specimens/s/591.

Record sources