Overview

Comprehensive Description

Biology

Adults occur in sandy to silty bottoms of lagoons and coastal bays near coral, rubble or leaf litter shelter. Solitary or in pairs that share sandy burrows (Ref. 90102). Feed on small interstitial invertebrates by sifting mouthfuls of sand. Monogamous (Ref. 52884, 48637).
  • Allen, G.R. and R. Swainston 1992 Reef fishes of New Guinea: a field guide for divers, anglers and naturalists. Publication No. 8. Christensen Research Institute, Madang, Papua New Guinea. 132 p. (Ref. 6023)
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Distribution

Western Pacific: Philippines to the Solomon Islands and Vanuatu, south to the southern Great Barrier Reef; Palau in Micronesia.
  • Myers, R.F. 1991 Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
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Western Pacific and southeastern Indian Ocean.
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Physical Description

Morphology

Dorsal spines (total): 7; Dorsal soft rays (total): 10 - 11; Analspines: 1; Analsoft rays: 10 - 11
  • Myers, R.F. 1991 Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
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Size

Maximum size: 65 mm NG
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Max. size

10.0 cm SL (male/unsexed; (Ref. 48637))
  • Kuiter, R.H. and T. Tonozuka 2001 Pictorial guide to Indonesian reef fishes. Part 3. Jawfishes - Sunfishes, Opistognathidae - Molidae. Zoonetics, Australia. p. 623-893. (Ref. 48637)
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Diagnostic Description

Conspicuous ocellated dorsal fins (Ref. 90102); characterized by pale bluish grey to yellowish tan; narrow brown bar below eye; upper half of body with irregular brown spot and saddles; three irregular brown bars on lower half of body; narrow brown bar across base of caudal fin; pelvic and anal fins black with blue spots; rounded caudal fin; longitudinal scale series 48-55; mainly ctenoid body scales posteriorly, becoming cycloid anteriorly just behind pectoral base and below first dorsal fin; cycloid on ventral surface of abdomen; head and midline of nape without scales; depth of body 4.3-5.6 in SL (Ref. 90102).
  • Myers, R.F. 1991 Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
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Type Information

Paratype for Signigobius biocellatus Hoese & Allen
Catalog Number: USNM 215043
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): B. Collette
Year Collected: 1970
Locality: New Guinea, New Guinea Territory, Bay In Krankett Island, Madang Harbor, S. End of Belian Island, Madang Harbor, S. End of Beliau Island, Krankett Island, New Guinea, Madang Province, Papua New Guinea, Madang Harbor, Pacific
Depth (m): 2 to 8
  • Paratype: Hoese, D. F. & Allen, G. R. 1977. Japanese Journal of Ichthyology. 23 (4): 199-207.
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Paratype for Signigobius biocellatus Hoese & Allen
Catalog Number: USNM 99290
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1909
Locality: Tifu, Bouro Island, Buru, Indonesia, Moluccas, Pacific
Vessel: Albatross
  • Paratype: Hoese, D. F. & Allen, G. R. 1977. Japanese Journal of Ichthyology. 23 (4): 199-207.
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Paratype for Signigobius biocellatus Hoese & Allen
Catalog Number: USNM 215044
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Preparation: Illustration
Collector(s): B. Collette
Year Collected: 1970
Locality: New Guinea, Madang, Inlet On Harbour Side Krankett Is., Mangrove Patch, Papua New Guinea, Pacific
Depth (m): 3
  • Paratype: Hoese, D. F. & Allen, G. R. 1977. Japanese Journal of Ichthyology. 23 (4): 199-207.
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Paratype for Signigobius biocellatus Hoese & Allen
Catalog Number: USNM 215045
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): W. Chapman & H. Cheyne
Year Collected: 1944
Locality: Solomons: New Georgia; Munda Lagoon, New Georgia Islands, Solomon Islands, Pacific
  • Paratype: Hoese, D. F. & Allen, G. R. 1977. Japanese Journal of Ichthyology. 23 (4): 199-207.
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Paratype for Signigobius biocellatus Hoese & Allen
Catalog Number: USNM 215046
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): W. Chapman & H. Cheyne
Year Collected: 1944
Locality: Solomons: New Georgia; Munda Lagoon, New Georgia Islands, Solomon Islands, Pacific
  • Paratype: Hoese, D. F. & Allen, G. R. 1977. Japanese Journal of Ichthyology. 23 (4): 199-207.
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Paratype for Signigobius biocellatus Hoese & Allen
Catalog Number: USNM 215042
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): J. Tyler & C. Smith
Year Collected: 1969
Locality: Australia, Queensland, Endeavour Reef, About 1/4 Mile North of Cook Wreck Site., Queensland, Australia, Pacific
Depth (m): 14 to 18
  • Paratype: Hoese, D. F. & Allen, G. R. 1977. Japanese Journal of Ichthyology. 23 (4): 199-207.
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Paratype for Signigobius biocellatus Hoese & Allen
Catalog Number: USNM 215040
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): A. Ts
Locality: Australia, Great Barrier Reef, Queensland, Australia, Pacific
  • Paratype: Hoese, D. F. & Allen, G. R. 1977. Japanese Journal of Ichthyology. 23 (4): 199-207.
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Paratype for Signigobius biocellatus Hoese & Allen
Catalog Number: USNM 215039
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): J. Tyler & G. Bettle
Year Collected: 1969
Locality: Australia, Queensland, Big Hope Island, Middle of North Coast of Island, Queensland, Australia, Pacific
Depth (m): 8 to 11
  • Paratype: Hoese, D. F. & Allen, G. R. 1977. Japanese Journal of Ichthyology. 23 (4): 199-207.
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Paratype for Signigobius biocellatus Hoese & Allen
Catalog Number: USNM 215038
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): J. Tyler & G. Bettle
Year Collected: 1969
Locality: Australia, Queensland, Big Hope Island, Middle of North Coast of Island, Queensland, Australia, Pacific
Depth (m): 8 to 11
  • Paratype: Hoese, D. F. & Allen, G. R. 1977. Japanese Journal of Ichthyology. 23 (4): 199-207.
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Paratype for Signigobius biocellatus Hoese & Allen
Catalog Number: USNM 215037
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): J. Tyler & C. Smith
Year Collected: 1969
Locality: Australia: Queensland: Endeavor Reef , just south of eastern tip of Eastern half of Reef., Queensland, Australia, Pacific
Depth (m): 17 to 21
  • Paratype: Hoese, D. F. & Allen, G. R. 1977. Japanese Journal of Ichthyology. 23 (4): 199-207.
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Paratype for Signigobius biocellatus Hoese & Allen
Catalog Number: USNM 215036
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): C. Smith, J. Tyler, G. Bettle & A. Wall
Year Collected: 1969
Locality: Australia, Queensland, Northern Escape Reef, Middle of Western End of Reef., Queensland, Australia, Pacific
Depth (m): 24 to 27
  • Paratype: Hoese, D. F. & Allen, G. R. 1977. Japanese Journal of Ichthyology. 23 (4): 199-207.
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Paratype for Signigobius biocellatus Hoese & Allen
Catalog Number: USNM 215035
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): J. Tyler, C. Smith, G. Bettle & A. Wolf
Year Collected: 1969
Locality: Australia, Queensland, Northern Escape Reef, Middle of Western Edge of Reef., Queensland, Australia, Pacific
Depth (m): 26 to 29
  • Paratype: Hoese, D. F. & Allen, G. R. 1977. Japanese Journal of Ichthyology. 23 (4): 199-207.
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Paratype for Signigobius biocellatus Hoese & Allen
Catalog Number: USNM 215041
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): J. Tyler & C. Smith
Year Collected: 1969
Locality: Australia: Queensland, Endeavour Reef; Western End of Eastern Half of Reef; South Side., Australia, Queensland, Pacific
Depth (m): 14 to 15
  • Paratype: Hoese, D. F. & Allen, G. R. 1977. Japanese Journal of Ichthyology. 23 (4): 199-207.
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Paratype for Signigobius biocellatus Hoese & Allen
Catalog Number: USNM 216211
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): J. Paxton
Year Collected: 1975
Locality: Lizard Island Lagoon, Queensland, Australia, Pacific
  • Paratype: Hoese, D. F. & Allen, G. R. 1977. Japanese Journal of Ichthyology. 23 (4): 199-207.
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Paratype for Signigobius biocellatus Hoese & Allen
Catalog Number: USNM 216210
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): G. Allen
Year Collected: 1972
Locality: Palau Islands; Malakal Passage, Palau Islands, Palau, Caroline Islands, Pacific
  • Paratype: Hoese, D. F. & Allen, G. R. 1977. Japanese Journal of Ichthyology. 23 (4): 199-207.
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Ecology

Habitat

Environment

reef-associated; marine; depth range 1 - 30 m (Ref. 1602), usually 2 - 30 m (Ref. 27115)
  • Baensch, H.A. and H. Debelius 1997 Meerwasser atlas. Mergus Verlag GmbH, Postfach 86, 49302, Melle, Germany. 1216 p. 3rd edition. (Ref. 27115)
  • Myers, R.F. 1991 Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
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Depth range based on 12 specimens in 1 taxon.
Water temperature and chemistry ranges based on 12 samples.

Environmental ranges
  Depth range (m): 0.5 - 15.25
  Temperature range (°C): 26.692 - 29.205
  Nitrate (umol/L): 0.043 - 0.923
  Salinity (PPS): 34.131 - 35.037
  Oxygen (ml/l): 4.525 - 4.685
  Phosphate (umol/l): 0.105 - 0.208
  Silicate (umol/l): 0.983 - 1.657

Graphical representation

Depth range (m): 0.5 - 15.25

Temperature range (°C): 26.692 - 29.205

Nitrate (umol/L): 0.043 - 0.923

Salinity (PPS): 34.131 - 35.037

Oxygen (ml/l): 4.525 - 4.685

Phosphate (umol/l): 0.105 - 0.208

Silicate (umol/l): 0.983 - 1.657
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth: 1 - 30m.
From 1 to 30 meters.

Habitat: reef-associated. Occurs in sandy to silty bottoms of lagoons and coastal bays near coral, rubble or leaf litter shelter. Feeds on small interstitial invertebrates by sifting mouthfuls of sand.
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Trophic Strategy

Occurs in sandy to silty bottoms of lagoons and coastal bays near coral, rubble or leaf litter shelter. Feeds on small interstitial invertebrates by sifting mouthfuls of sand.
  • Allen, G.R. and R. Swainston 1992 Reef fishes of New Guinea: a field guide for divers, anglers and naturalists. Publication No. 8. Christensen Research Institute, Madang, Papua New Guinea. 132 p. (Ref. 6023)
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Signigobius biocellatus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 4
Species With Barcodes: 1
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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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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: of no interest; aquarium: commercial
  • Burgess, W.E., H.R. Axelrod and R.E. Hunziker III 1990 Dr. Burgess's atlas of marine aquarium fishes. T.F.H. Publications, Inc., Neptune City, New Jersey. 768 p.
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Wikipedia

Signigobius biocellatus

Signigobius biocellatus, the Twin-spot Goby or Crab-eyed Goby, is a species of goby native to the Western Pacific Ocean where they can be found in areas of sand or silt in lagoons or coastal bays with nearby cover provided by such as rubble, coral or leaf litter. They can be found at depths of from 1 to 30 metres (3.3 to 98 ft). This species can reach a length of 10 centimetres (3.9 in) SL. It can also be found in the aquarium trade. It is currently the only known member of its genus.[1]

References[edit]

  1. ^ Froese, Rainer and Pauly, Daniel, eds. (2013). "Signigobius biocellatus" in FishBase. June 2013 version.


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