Overview

Comprehensive Description

Biology

Mesopelagic species (Ref. 4468). Also Ref. 58302.
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Data on Catalog of Fishes

View data on Catalog of Fishes here.

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Main Reference

Gibbs RH, Jr. 1984. Melanostomiidae. In: Whitehead PJP, Bauchot M-L, Hureau J-C, Nielsen J, Tortonese E, editors. Fishes of the North-eastern Atlantic and the Mediterranean. Paris: UNESCO. p 341–365.

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Description

pectoral finrays 11–13; pelvic finrays (7?) 9–10. Photophores in ventral row between pectoral and pelvic fin insertions (PV) 15–16, between pelvic fin insertion and end of row over anal fin (VAV) 12–13, total in ventral row from isthmus to tail (IC) 38–39; in lateral row to pelvic fin insertion (OV) 14–16, from pelvic fin insertion to end of row over anal fin (VAL) 10–12, total in lateral row (OA) 25–26. Color of head and body black with iridescent blue, green or bronze.

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Type Description

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Distribution

Eastern Atlantic: off Gibraltar, from Madeira to Sierra Leone; off South Africa (Ref. 4740). Western Central Atlantic: Bermuda, Bahamas, Cuba to the Lesser Antilles. Also, Indian and Pacific Oceans.
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off Gibraltar and west of Madeira. Elsewhere, southward to 9° N and again off South Africa; also, Bermuda, Cuba and Bahamas to the Lesser Antilles and Pacific and Indian Oceans.

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Circumglobal in warm seas, including Hawaiian Islands.
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Physical Description

Morphology

Dorsal spines (total): 0; Dorsal soft rays (total): 12 - 15; Analspines: 0; Analsoft rays: 14
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Size

Maximum size: 170 mm TL
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Max. size

17.0 cm TL (male/unsexed; (Ref. 3984))
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to about 17 cm.

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Type Information

Type for Bathophilus digitatus
Catalog Number: USNM 84291
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Preparation: Illustration
Year Collected: 1914
Locality: 225 mi. West of Bermuda 75-0 m., Atlantic
Vessel: Grampus (Bache)
  • Type:
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Ecology

Habitat

Environment

bathypelagic; marine; depth range 75 - 550 m (Ref. 58302)
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Depth range based on 12 specimens in 1 taxon.
Water temperature and chemistry ranges based on 9 samples.

Environmental ranges
  Depth range (m): 50.5 - 2085
  Temperature range (°C): 3.703 - 19.723
  Nitrate (umol/L): 0.279 - 36.716
  Salinity (PPS): 34.540 - 36.485
  Oxygen (ml/l): 0.112 - 6.124
  Phosphate (umol/l): 0.077 - 2.683
  Silicate (umol/l): 1.150 - 49.694

Graphical representation

Depth range (m): 50.5 - 2085

Temperature range (°C): 3.703 - 19.723

Nitrate (umol/L): 0.279 - 36.716

Salinity (PPS): 34.540 - 36.485

Oxygen (ml/l): 0.112 - 6.124

Phosphate (umol/l): 0.077 - 2.683

Silicate (umol/l): 1.150 - 49.694
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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meso- to bathypelagic

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Conservation

Threats

Not Evaluated
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