Overview

Comprehensive Description

Type Description

View original type description as PDF.

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Data on Catalog of Fishes

View data on Catalog of Fishes here.

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Type locality

Irish Atlantic Slope off sw Ireland, 51°20'N, 11°56'W, depth 0–700 fathoms.

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Type specimen(s)

Holotype: BMNH 1910.9.17.2.

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Description

Loop of luminous tissue on side of body almost straight dorsally, forming irregular zig-zags ventrally, its posteriormost extent over pelvic fin insertions. Color of head and body black, except pale loop.

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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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Distribution

Northern Atlantic: found around LaHave Bank. southern Ireland and Bay of Biscay to west of 45°W between 32°N-15°N
  • North-West Atlantic Ocean species (NWARMS)
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North Atlantic: southern Ireland and Bay of Biscay to west of 45°W between 32°N-15°N.
  • Gibbs, R.H. Jr. 1984 Melanostomiidae. p. 341-365. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the north-eastern Atlantic and the Mediterranean. UNESCO, Paris. Vol. 1. (Ref. 4740)
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North Atlantic west of 45° W between about 15° and 32° N.

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North Atlantic.
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Physical Description

Morphology

Dorsal soft rays (total): 18 - 21; Analsoft rays: 20 - 24
  • Bigelow, H.B., D.M. Cohen, M.M. Dick, R.H. Gibbs Jr., M. Grey, J.E. Morrow Jr., L.P. Schultz and V. Walters 1964 Fishes of the western North Atlantic. Part four. New Haven, Sears Found. Mar. Res., Yale Univ. (Ref. 37473)
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The following description applies to all three known species of Grammatostomias.

Body moderately elongate, its depth fewer than 10 time in SL. Head with tapering snout of moderate length; lower jaw not longer than upper jaw, not curved strongly upward; bargel slender, unpigmented, usually or always broken after being caught; reported to be 7 or more times longer than SL in one specimen; end of barbel presumed to be unmodified. Pectoral fin with 4–11 rays, the anterior rays with masses of luminous material near bases; pelvic fins low on body, their insertions close together near mid-ventral lin' bases of dorsal and anal fisn about eayal in lenth, their origin approximately opposed; no doral adipose fin. Photophores in ventral row between pectoral and pelvic-fin insertions (PV) 15–18; a pale loop or line present on flanks; postorbital photphore an elongate triangle, much smaller than, to slightly longer than eye diameter; no large patches of luminous material on head behind eye, but small spots or lines often present.

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Size

To more than 20 cm.

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Diagnostic Description

Elongated loop with irregular zigzags in the luminous tissue (Ref. 37473).
  • Bigelow, H.B., D.M. Cohen, M.M. Dick, R.H. Gibbs Jr., M. Grey, J.E. Morrow Jr., L.P. Schultz and V. Walters 1964 Fishes of the western North Atlantic. Part four. New Haven, Sears Found. Mar. Res., Yale Univ. (Ref. 37473)
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Ecology

Habitat

nektonic
  • North-West Atlantic Ocean species (NWARMS)
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Environment

bathypelagic; marine; depth range 0 - 1281 m (Ref. 58018)
  • Bogutskaya, N.G. 2007 Preliminary assignment of coordinates to type localities in the Catalog of Fishes. Unpublished dbf file. (Ref. 58018)
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Depth range based on 6 specimens in 1 taxon.
Water temperature and chemistry ranges based on 6 samples.

Environmental ranges
  Depth range (m): 495 - 1900
  Temperature range (°C): 3.614 - 12.125
  Nitrate (umol/L): 13.040 - 22.079
  Salinity (PPS): 34.945 - 35.576
  Oxygen (ml/l): 3.584 - 6.178
  Phosphate (umol/l): 0.778 - 1.404
  Silicate (umol/l): 5.401 - 14.223

Graphical representation

Depth range (m): 495 - 1900

Temperature range (°C): 3.614 - 12.125

Nitrate (umol/L): 13.040 - 22.079

Salinity (PPS): 34.945 - 35.576

Oxygen (ml/l): 3.584 - 6.178

Phosphate (umol/l): 0.778 - 1.404

Silicate (umol/l): 5.401 - 14.223
 
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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Molecular Biology and Genetics

Molecular Biology

Barcode data: Grammatostomias flagellibarba

The following is a representative barcode sequence, the centroid of all available sequences for this species.


No available public DNA sequences.

Download FASTA File
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Statistics of barcoding coverage: Grammatostomias flagellibarba

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 2
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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