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Anguilliformes (Eels and morays) >
Ophichthidae (Snake eels) > Myrophinae
Etymology: Pylorobranchus: From the Greek pylorus (gatekeeper) and branchos (gill), neuter, in reference to the lappet-like structure located before the gill opening; hearstorum: Named for William and Margaret Hearst.
Eponymy: William Randolph Hearst III (d: 1949) and his wife Margaret Hearst are friends of the author, John McCosker (q. [...] (Ref. 128868), visit book page.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien benthopelagisch; diepte 892 - 966 m (Ref. 95665). Deep-water
Western Central Pacific: Philippines.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 121.8 cm TL (female)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
This elongate myrophine is distinguished by the following characteristics: tail 66% of TL; dorsal fin arise in the posterior trunk region; dorsal fin is slightly elevated, while anal fin is very elevated; developed, wedge-shaped pectoral fin, about four times eye diameter; moderate eye, 17 in HL; rear margin of orbit is above posterior third of upper jaw; small cephalic pores, SO 1 x 3, IO 5 x 2, POM 7 x 3 (2 right), and ST 3 present; needle-shaped teeth, not enlarged, slightly retrorse, uniserial on jaws and vomer; body color brownish black, median fins grayish black, with anal-fin membrane black posteriorly; vertebral formula 39/66/226 (Ref. 95665).
Body shape (shape guide): eel-like; Cross section: compressed.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
McCosker, J.E., 2014. A gigantic deepwater worm eel (Anguilliformes: Ophichthidae) from the Verde Island Passage, Philippine Archipelago. pp. 333-340. In Williams, G.C. and T.M. Gosliner (eds.) 2014. The Coral Triangle: the 2011 Hearst Philippine biodiversity expedition. California: San Francisco, California Academy of Sciences, 593 p. (Ref. 95665)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
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Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00076 (0.00028 - 0.00203), b=3.06 (2.83 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
4.5 ±0.8 se; based on size and trophs of closest relatives |
Weerstandsvermogen (Ref. 120179) |
Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.). |
Kwetsbaarheid van de visserij (Ref. 59153) |
High vulnerability (59 of 100). 🛈 |