Classificatie / Namen
Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien demersaal. Tropical
Eastern Indian Ocean: Bangladesh.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 93.3 cm TL mannelijk / geslacht onbekend; (Ref. 125646)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
This species is distinguished from its congeners by the following set of characters: body brownish or greyish with a narrowly wedge-shaped disc; a long narrow bluntly pointed snout (angle 31-40°); broad oblique nostrils with the narrow anterior opening; nostrils about half of the mouth width, subequal (0.98-1.33) to internasal width; ~55-57 nasal lamellae; anterior nasal flaps are slightly penetrating into internasal space, their interspace 2.20- 2.61 in length of the posterior nasal aperture; in adults the orbit is very small, diameter 8.19-11.62 in preorbital length, 2.25-2.69 in interorbital space; rostral ridges are almost joined along their entire length; margin of cranium sharply demarcated before eyes; spiracular folds are very short and widely separated; rough skin densely covered with small denticles, more coarsely granular on the dorsal surface than ventrally, enlarged between orbits and in a distinct band between nape and first dorsal fin; tail relatively longer, its length 1.15-1.48 in disc length; dorsal fins narrowly spaced, interspace 1.32-2.11 in base length of the first dorsal fin; clasper length in adult male 4.37-5.70 in total length (Ref. 125646).
Cross section: flattened.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Habib, K.A. and M.J. Islam, 2021. Description of a new species of giant guitarfish, Glaucostegus younholeei sp. nov. (Rhinopristiformes: Glaucostegidae) from the northern Bay of Bengal, Bangladesh. Zootaxa 4995(1):129-146. (Ref. 125646)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
Download XML
Internetbronnen
Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00389 (0.00140 - 0.01084), b=3.05 (2.82 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
3.5 ±0.5 se; based on size and trophs of closest relatives |
Weerstandsvermogen (Ref. 120179) |
Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.). |
Kwetsbaarheid van de visserij (Ref. 59153) |
Low to moderate vulnerability (34 of 100). 🛈 |