Overview

Comprehensive Description

Biology

Benthic (Ref. 58302). A poorly known species which is apparently represented only by a few specimens collected from the Hawaiian Islands and the Emperor Seamount (Ref. 94130).
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Distribution

Pacific: Hawaiian Islands and the Emperor Seamount (based on specimens deposited in the National Science Museum, Tokyo).
  • Ho, H.-C. and P.R. Last 2013 Two new species of the coffinfish genus Chaunax (Lophiiformes: Chaunacidae) from the Indian Ocean. Zootaxa 3710(5):436-448. (Ref. 94130)
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Circumglobal in tropical and subtropical seas, mainly around volcanic islands (including Mascarenes, Hawaiian Islands).
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Physical Description

Size

Max. size

35.0 cm SL (male/unsexed; (Ref. 31667))
  • Anonymous 1998 Fish collection database of the Bernice P. Bishop Museum (BPBM). Bishop Museum, 1525 Bernice Street, Honolulu, Hawai`I, 96817-0916 USA. (Ref. 31667)
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Diagnostic Description

A species belonging to the C. fimbriatus species group which is distinguished mainly from its congeners by its very fine reticulate pattern on the dorsal surface, even in large individuals; with mainly 13 neuromasts in the pectoral series (vs. 12 or less in its congeners) and slightly more numerous neuromasts on the body proper, 33-38 (vs. 29-37) (Ref. 94130).
  • Ho, H.-C. and P.R. Last 2013 Two new species of the coffinfish genus Chaunax (Lophiiformes: Chaunacidae) from the Indian Ocean. Zootaxa 3710(5):436-448. (Ref. 94130)
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Type Information

Type for Chaunax umbrinus
Catalog Number: USNM 51547
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Preparation: Illustration
Year Collected: 1902
Locality: Hawaii: Pailolo Channel Between Maui + Molokai Ids, Mokuhooniki Islet N. 27 Deg. W. 3.3', Maui, Hawaii, United States, Hawaiian Islands, Pacific
Depth (m): 249 to 271
Vessel: Albatross
  • Type:
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Source: National Museum of Natural History Collections

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Ecology

Habitat

Known from seamounts and knolls
  • Stocks, K. 2009. Seamounts Online: an online information system for seamount biology. Version 2009-1. World Wide Web electronic publication.
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Source: World Register of Marine Species

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Environment

demersal; marine; depth range 183 - 400 m (Ref. 7460)
  • Chave, E.H. and B.C. Mundy 1994 Deep-sea benthic fish of the Hawaiian Archipelago, Cross Seamount, and Johnston Atoll. Pac. Sci. 48:367-409. (Ref. 7460)
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Depth range based on 21 specimens in 1 taxon.
Water temperature and chemistry ranges based on 15 samples.

Environmental ranges
  Depth range (m): 180 - 612.5
  Temperature range (°C): 9.089 - 18.228
  Nitrate (umol/L): 2.890 - 21.196
  Salinity (PPS): 34.113 - 34.906
  Oxygen (ml/l): 3.608 - 5.251
  Phosphate (umol/l): 0.316 - 1.639
  Silicate (umol/l): 3.095 - 25.228

Graphical representation

Depth range (m): 180 - 612.5

Temperature range (°C): 9.089 - 18.228

Nitrate (umol/L): 2.890 - 21.196

Salinity (PPS): 34.113 - 34.906

Oxygen (ml/l): 3.608 - 5.251

Phosphate (umol/l): 0.316 - 1.639

Silicate (umol/l): 3.095 - 25.228
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Conservation

Threats

Not Evaluated
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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