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Dusky Garden Eel

Heteroconger enigmaticus Castle & Randall 1999

Diagnostic Description

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Diagnostic features: Body color medium to dark brown, moderately elongate; 47-55 pre-anal pores; 51-56 preanal, 154-163 total vertebrae; pterygoid teeth present in most specimens.Description: Characterized by head and body covered with numerous whitish flecks; origin of dorsal fin posterior to gill opening; predorsal length 18.6-25.0 % of preanal length; preanal length 32.7-36.3 % of TL; depth of body at opening of gill 30.7-38.8 % of head length (Ref. 90102).
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Morphology

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Dorsal soft rays (total): 459 - 508; Analsoft rays: 297 - 341; Vertebrae: 154 - 163
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Biology

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Occurs in dark, silty sand with seagrass Holiphila (Ref. 33408).
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Enigma garden eel

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The enigma garden eel[2] (Heteroconger enigmaticus) is a species of eel in the conger/garden eel family Congridae.[3]

Taxonomy

The enigma garden eel was first described in 1999 by Peter Henry John Castle and John Ernest Randall.[4] The species epithet enigmaticus is derived from the Greek 'αινιγματικός' (enigmatikós), meaning 'enigmatic.'[3]

Description

This species is a tropical marine eel that is harmless to humans. It is medium to dark brown in colour. Males can reach a maximum total length of 43.7 cm (17.2 in; 1.43 ft), while females can reach 41.6 cm (16.4 in; 1.36 ft).[3]

Distribution and habitat

The enigma garden eel is found in the western Pacific Ocean, including Indonesia and New Guinea. It dwells at a depth range of 3 to 25 m (9.8 to 82.0 ft), and inhabits regions with dark, silty sand and seagrass (Holiphila species). Males can reach a maximum total length of 43.7 cm (17.2 in; 1.43 ft), while females can reach 41.6 cm (16.4 in; 1.36 ft).[3]

References

  1. ^ Tighe, K.; Smith, D.G.; McCosker, J. (2019). "Heteroconger enigmaticus". IUCN Red List of Threatened Species. 2019: e.T199060A2554716. doi:10.2305/IUCN.UK.2019-1.RLTS.T199060A2554716.en. Retrieved 29 December 2021.
  2. ^ Common names of Heteroconger enigmaticus at www.fishbase.org.
  3. ^ a b c d Heteroconger enigmaticus at www.fishbase.org.
  4. ^ Castle, P. H. J. and J. E. Randall, 1999 (Sept.) [ref. 24042] Revision of Indo-Pacific garden eels (Congridae: Heterocongrinae), with descriptions of five new species. Indo-Pacific Fishes No. 30: 1-52, Pls. I-III.
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Enigma garden eel: Brief Summary

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The enigma garden eel (Heteroconger enigmaticus) is a species of eel in the conger/garden eel family Congridae.

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