Overview

Comprehensive Description

Biology

Ovoviviparous (Ref. 205).
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Distribution

Norfolk Ridge, southwestern Pacific.
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Western Pacific: Norfolk Ridge and Lord Howe Ridge off New Caledonia.
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Physical Description

Size

Max. size

45.3 cm TL (male/unsexed; (Ref. 45056)); 41.4 cm TL (female)
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Diagnostic Description

Body cigar-shaped; deep head conical with a short bulbous snout; preoral length 7.3-8.2 % TL. Eye almost round with a small opalescent lunate patch on upper eyelid margin. Pectoral fins small, rear tip about cornea diameter in front of D2 origin. Dorsal and ventral coloration dark; white conspicuous pineal blotch small and triangular. Caudal peduncle short (14.8-16.6% TL). Upper teeth of mature males usually with 7 cusps, others 9-11, in separated rows; central cusps greatly expanded, about 2 times longer than those adjacent. Denticles small, with a single erected, slightly curved cusps, arranged in irregular rows. Anterior branch of pelvic marking long and slender, posterior branch truncated. Precaudal marking with very long finger-like extensions reaching to central caudal fin. Monospondylous centra 46-47 (Ref. 45056).
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Ecology

Habitat

Depth range based on 4 specimens in 1 taxon.
Water temperature and chemistry ranges based on 4 samples.

Environmental ranges
  Depth range (m): 935 - 1119
  Temperature range (°C): 4.321 - 5.174
  Nitrate (umol/L): 29.897 - 33.100
  Salinity (PPS): 34.461 - 34.475
  Oxygen (ml/l): 4.065 - 4.271
  Phosphate (umol/l): 2.042 - 2.293
  Silicate (umol/l): 41.099 - 52.696

Graphical representation

Depth range (m): 935 - 1119

Temperature range (°C): 4.321 - 5.174

Nitrate (umol/L): 29.897 - 33.100

Salinity (PPS): 34.461 - 34.475

Oxygen (ml/l): 4.065 - 4.271

Phosphate (umol/l): 2.042 - 2.293

Silicate (umol/l): 41.099 - 52.696
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
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Environment

bathypelagic; marine; depth range 668 - 1170 m (Ref. 45056)
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Depth range based on 4 specimens in 1 taxon.
Water temperature and chemistry ranges based on 4 samples.

Environmental ranges
  Depth range (m): 935 - 1119
  Temperature range (°C): 4.321 - 5.174
  Nitrate (umol/L): 29.897 - 33.100
  Salinity (PPS): 34.461 - 34.475
  Oxygen (ml/l): 4.065 - 4.271
  Phosphate (umol/l): 2.042 - 2.293
  Silicate (umol/l): 41.099 - 52.696

Graphical representation

Depth range (m): 935 - 1119

Temperature range (°C): 4.321 - 5.174

Nitrate (umol/L): 29.897 - 33.100

Salinity (PPS): 34.461 - 34.475

Oxygen (ml/l): 4.065 - 4.271

Phosphate (umol/l): 2.042 - 2.293

Silicate (umol/l): 41.099 - 52.696
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Life History and Behavior

Life Cycle

Distinct pairing with embrace (Ref. 205).
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Etmopterus pseudosqualiolus

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: Etmopterus pseudosqualiolus

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

Threats

Least Concern (LC)
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Wikipedia

False lanternshark

The false lanternshark, Etmopterus pseudosqualiolus, is a shark of the family Etmopteridae found in the western Pacific from the Norfolk Ridge and Lord Howe Ridge off New Caledonia.

References

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