Myxini (hagfishes) (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); longipinnis: longus (L.), long; pinnis (L.) fins, referring to well-developed fold on ventral fins that extends to branchial region (See ETYFish).
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi
Ekologi
laut dasar (demersal); nir-ruaya; kisaran kedalaman 14 - 40 m (Ref. 85052). Temperate
Eastern Indian Ocean: Off Robe and off Cape Douglas, South Australia.
Ukuran / Berat / umur
Kematangan: Lm ?  range ? - ? cm
Max length : 62.7 cm TL jantan/; (Ref. 85052)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
This species is distinguished from all its congeners by its ventral fin fold beginning anterior to the first pair of gill apertures (within anterior 27-28% TL) (Ref. 85052).
Body shape (shape guide): eel-like.
Occurs on soft bottoms of the continental shelf (Ref. 7300). Maximum depth from Ref. 58018.
Copulatory organ absent. The gonads of hagfishes are situated in the peritoneal cavity. The ovary is found in the anterior portion of the gonad, and the testis is found in the posterior part. The animal becomes female if the cranial part of the gonad develops or male if the caudal part undergoes differentiation. If none develops, then the animal becomes sterile. If both anterior and posterior parts develop, then the animal becomes a functional hermaphrodite. However, hermaphroditism being characterised as functional needs to be validated by more reproduction studies (Ref. 51361 ).
Fernholm, B., 1998. Hagfish systematics. p. 33-44. In J.M. Jørgensen, J.P. Lomholt, R.E. Weber and H. Malte (eds.) The biology of hagfishes. Chapman & Hall, London. 578 p. (Ref. 31276)
Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))
Rentan (VU) (B2ab(iii)); Date assessed: 10 November 2009
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: tidak ada kepentingan
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimasi berdasarkan model
Suhu yang disukai (Acuan
123201): 15 - 18.7, mean 17.4 °C (based on 24 cells).
Indeks keanekaragaman filogenetik (Acuan
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=2.92 (2.72 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Tingkat Trofik (Acuan
69278): 4.2 ±0.41 se; based on food items.
Daya lenting (Acuan
120179): Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (Fec assumed to be <100).
Kerentanan Penangkapan Ikan (Ref.
59153): Moderate to high vulnerability (45 of 100).
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