Exopalicus maculatus

Button Crab

marine

(Edmondson, 1930)Accepted name in the World Register of Marine Species.WoRMS 442179 ↗

Photo: (c) Shallow Reef, some rights reserved (CC BY-NC), uploaded by Shallow Reef (iNaturalist)

Bishop specimens

Type specimens

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First collected

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Last collected

2026

Last seen alive in Hawaiʻi

In the Library

Bishop Museum publications whose pages name Exopalicus maculatus, most mentions first.

2002
Nonindigenous marine species at Waikiki and Hawaii Kai, O‘ahu, Hawai‘i
Coles, S.L., R.C. DeFelice & L.G. Eldredge · Contribution to the Hawaii Biological Survey · 2 pages
Read
2008
Assessment of species composition, diversity and biomass in marine habitats and subhaqbitats around offshore islets in the main Hawaiian Islands
Coles, S.L., Giuseffi, L. & Hutchinson, M. · Contribution to the Hawaii Biological Survey · 1 page
Read
2007
Records of the Hawaii Biological Survey for 2006. Part 2: notes
Evenhuis, N.L. and Eldredge, L.G. (editors) · Contribution to the Hawaii Biological Survey · 1 page
Read
2006
Records of the Hawaii Biological Survey for 2006: Notes
Evenhuis, N.L. & Eldredge, L.G. (eds) · Records of the Hawaii Biological Survey · 1 page
Read
2002
Numbers of Hawaiian species for 2000
Eldredge, L.G. & N.L. Evenhuis · Contribution to the Hawaii Biological Survey · 1 page
Read

9 mapped specimens. Localities of endangered species are shown approximately.

24 research-grade iNaturalist sightings in the wild in Hawaiʻi since 2000. Most recent first.

2026-05-10

Hawaii County, HI, USA

2026-05-10

Hawaii County, HI, USA

2025-04-25

Honolulu County, HI, USA

2025-03-25

Mamala Bay, HI, US

2024-11-07

Mamala Bay, HI, US

2024-09-14

Mamala Bay, HI, US

2023-04-18

Hawaii, US

2023-04-06

Napili-Honokowai, HI, USA