Overview

Comprehensive Description

Biology

Adults inhabit coral reef (Ref. 75154). Ovoviviparous (Ref. 205). The male carries the eggs in a brood pouch which is found under the tail (Ref. 205).
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Distribution

Western Pacific: Australia. More recently reported from the Chesterfield Islands (Ref. 11897).
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Western Pacific: Great Barrier Reef, eastern Australia.
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Physical Description

Size

Maximum size: 134 mm SL
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Max. size

13.4 cm SL (male/unsexed; (Ref. 5316))
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Type Information

Paratype for Corythoichthys paxtoni Dawson
Catalog Number: USNM 214979
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): V. Springer
Year Collected: 1966
Locality: One Tree Islet, Capricorn Group, Queensland, Australia. W. End of Bay At NW End of Island, One Tree Island, Capricorn Group, Queensland, Australia, Pacific
Depth (m): 2
  • Paratype: Dawson, C. E. 1977. Copeia. 1977 (2): 335.
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Paratype for Corythoichthys paxtoni Dawson
Catalog Number: USNM 214977
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): V. Springer, J. Choat & D. Mcmichael
Year Collected: 1966
Locality: Australia: Queensland, One Tree Islet, Capricorn Group, Lagoon Side-a Micro Atoll, Perhaps 100 Yds. Long, 50 Yds. Wide, Sandy Silty Center. About one mile from One Tree Is., One Tree Island, Capricorn Group, Queensland, Australia, Pacific
Depth (m): 2
  • Paratype: Dawson, C. E. 1977. Copeia. 1977 (2): 335.
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Paratype for Corythoichthys paxtoni Dawson
Catalog Number: USNM 214980
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): V. Springer, D. Mcmichael, J. Choat & M. Cameron
Year Collected: 1966
Locality: Queensland, Australia-One Tree Island Pie Crust Coral Flat Near Transect B (of Talbot) At SW End of Island, One Tree Island, Capricorn Group, Queensland, Australia, Pacific
Depth (m): 1
  • Paratype: Dawson, C. E. 1977. Copeia. 1977 (2): 335.
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Paratype for Corythoichthys paxtoni Dawson
Catalog Number: USNM 214978
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): V. Springer, F. Talbot, J. Choat, J. Yaldwyn, D. Mcmichael, P. Woodhead & M. Cameron
Year Collected: 1966
Locality: Australia: Queensland; One Tree Island Tidal Pool On Reef Flat On SE Side of Island., One Tree Island, Capricorn Group, Queensland, Australia, Pacific
Depth (m): 1
  • Paratype: Dawson, C. E. 1977. Copeia. 1977 (2): 335.
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Paratype for Corythoichthys paxtoni Dawson
Catalog Number: USNM 214983
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): V. Springer, J. Choat, M. Cameron & D. Mcmichael
Year Collected: 1966
Locality: Australia, Queensland, One Tree Island, Coral Outcrop About 1500 Ft WNW of One Tree Island. (Lagoon Side of Island), One Tree Island, Capricorn Group, Queensland, Australia, Pacific
Depth (m): 4
  • Paratype: Dawson, C. E. 1977. Copeia. 1977 (2): 335.
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Paratype for Corythoichthys paxtoni Dawson
Catalog Number: USNM 214984
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): V. Springer & J. Choat
Year Collected: 1966
Locality: One Tree Islet: Queensland, Australia; Great Barrier Reef-Capricorn Group. Two Dead Coral Heads On NW Side of Island., One Tree Island, Capricorn Group, Queensland, Australia, Pacific
Depth (m): 1
  • Paratype: Dawson, C. E. 1977. Copeia. 1977 (2): 335.
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Ecology

Habitat

Environment

reef-associated; marine; depth range ? - 18 m (Ref. 5316)
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Depth range based on 1 specimen in 1 taxon.
Water temperature and chemistry ranges based on 1 sample.

Environmental ranges
  Depth range (m): 10 - 10
  Temperature range (°C): 25.709 - 25.709
  Nitrate (umol/L): 0.151 - 0.151
  Salinity (PPS): 35.312 - 35.312
  Oxygen (ml/l): 4.727 - 4.727
  Phosphate (umol/l): 0.141 - 0.141
  Silicate (umol/l): 1.409 - 1.409
 
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Depth: 0 - 18m.
Recorded at 18 meters.

Habitat: reef-associated.
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Life History and Behavior

Life Cycle

Male carries the eggs in a brood pouch (Ref. 205).
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Conservation

Threats

Not Evaluated
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