Naso hexacanthus
Black Unicornfish
(Bleeker, 1855)Accepted name in the World Register of Marine Species.WoRMS 219667 ↗
Photo: (c) Mark Rosenstein, some rights reserved (CC BY-NC), uploaded by Mark Rosenstein (iNaturalist)
14
Bishop specimens
0
Type specimens
1923
First collected
1984
Last collected
2026
Last seen alive in Hawaiʻi
In the Library
Bishop Museum publications whose pages name Naso hexacanthus, most mentions first.
2008
Assessment of species composition, diversity and biomass in marine habitats and subhaqbitats around offshore islets in the main Hawaiian IslandsColes, S.L., Giuseffi, L. & Hutchinson, M. · Contribution to the Hawaii Biological Survey · 4 pages
2010
Marine biota information base for offshore islets in the main Hawaiian IslandsColes, S.L. & Swenson, C. · Contribution to the Hawaii Biological Survey · 3 pages
2004
Assessment of nonindigenous species on coral reefs in the Hawaiian Islands, with emphasis on introduced invertebratesColes, S.L., L.G. Eldredge, F. Kandel, P.R. Reath & K. Longenecker · Contribution to the Hawaii Biological Survey · 2 pages
2002
Nonindigenous marine species at Waikiki and Hawaii Kai, O‘ahu, Hawai‘iColes, S.L., R.C. DeFelice & L.G. Eldredge · Contribution to the Hawaii Biological Survey · 2 pages
1999
Nonindigenous marine species introductions in the harbors of the south and west shores of Oahu, HawaiiColes, S.L., R.C. DeFelice, & L.G. Eldredge · Contribution to the Hawaii Biological Survey · 2 pages
2001
Marine species survey of Johnston Atoll, central Pacific Ocean, June 2000Coles, S.L., R.C. DeFelice & D. Minton · Contribution to the Hawaii Biological Survey · 1 page
Where Bishop collected it
1 mapped specimens. Localities of endangered species are shown approximately.
Two centuries of collecting
The oldest Bishop specimen was collected in 1923 by H.G. Hornbostel (Guam). The Museum last collected it in 1984; iNaturalist observers have seen it in the wild as recently as August 9, 2026.
Alive today
92 research-grade iNaturalist sightings in the wild in Hawaiʻi since 2000. Most recent first.
2026-08-09
Kauai County, HI, USA
(c) Amelia M., some rights reserved (CC BY-NC)
2026-08-08
North Pacific Ocean, HI, US
(c) matt_whitbeck, some rights reserved (CC BY-NC)
2026-07-31
Mamala Bay, HI, US
(c) Rad Dad Chad, some rights reserved (CC BY-NC)
2026-07-29
Maui County, US-HI, US
(c) orionsmcc, some rights reserved (CC BY-NC)
2026-05-30
Mamala Bay, HI, US
(c) Rad Dad Chad, some rights reserved (CC BY-NC)
2026-04-18
Lapakahi Marine Life Conservation District, 57-1727 Akoni Pule Hwy, Waimea, HI 96743, USA
(c) cjmatheson, some rights reserved (CC BY-NC)
2026-04-01
Honolulu, Hawaii, United States
(c) David R, some rights reserved (CC BY-NC)
2026-02-07
Honolulu County, HI, USA
(c) Nick K, some rights reserved (CC BY-NC)