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.
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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
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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).
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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)
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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
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