مكسيني (hagfishes) >
Myxiniformes (Hagfishes) >
Myxinidae (Hagfishes) > Eptatretinae
Etymology: Eptatretus: hepta (Gr.), seven; tretos (Gr.), perforated (i.e., with holes), referring to seven gill apertures on what would later be described as Homea banksii (=E. cirrhatus) [range within genus is 6-14 pairs of gill apertures] (See ETYFish); walkeri: In honor of Harold J. Walker, Jr., Collections Manager, Scripps Institution of Oceanography, for help in providing hagfish specimens and data, and for contributions to ichthyology (See ETYFish).
Eponymy: Harold J Walker Jr is a Senior Museum Scientist and Collections Manager at Scripps Institution of Oceanography, University of California, San Diego. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري القاع; غير مهاجرة; نطاق العمق 75 - 120 m (Ref. 51420). Deep-water
التوزيع
دول | مناطق الفاو | النظام البيئي | الظهور | Point map | مقدمة | Faunafri
Northwest Pacific: Japan and Korea.
الحجم / وزن / العمر
Maturity: Lm ?  range ? - ? cm
Max length : 51.8 cm TL ذكر/ مختلط الجنس; (Ref. 51420)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
Six pairs of gill pouches (GP) and apertures (GA); GA closely spaced in a linear or slightly irregular pattern; each GA with pale margin. Fused cusps 3/2, total cusps 38-44. Prebranchial slime pores 16-20, total pores 69-79. Ventral finfold poorly developed to vestigial. Eyespots faint or absent (Ref. 51420).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
McMillan, C.B. and R.L. Wisner, 2004. Review of the hagfishes (Myxinidae, Myxiniformes) of the northwestern Pacific Ocean, with descriptions of three new species, Eptatretus fernholmi, Paramyxine moki, and P. walkeri. Zool. Stud. 43(1):51-73. (Ref. 51420)
IUCN Red List Status (Ref. 130435: Version 2024-2)
استخدامات بشرية
مصائد: فوائد محتملة
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00204 (0.00094 - 0.00444), b=2.93 (2.74 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 4.2 ±0.7 se; based on size and trophs of closest relatives
المرونه (Ref.
120179): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (41 of 100).