Myxini (slijmprikken) (hagfishes) >
Carcharhiniformes (Ground sharks) >
Dichichthyidae ()
Etymology: Dichichthys: Name from the combination of the Greek 'dicho'- meaning 'to branch in two' and 'ichthys' for 'fish', with this genus being intermediate between the Galeus-Parmaturus complex and Apristurus; bigus: Latin for beige, referring to general plain and pale yellow-brown coloration (See ETYFish).
More on authors: Séret & Last.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien bathydemersaal; diepte 590 - 881 m (Ref. 130868). Deep-water
Western Pacific: Australia.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 71.0 cm TL (female)
This scyliorhinid catshark is characterized by the following: a soft body with velvety skin, with small tricuspidate denticles; plain pale yellowish brown coloration; fins yellowish brown with slightly paler edges; dorsal caudal crest well-developed, ventral crest distinct but weak, denticles enlarged on crest; teeth mainly tricuspidate, 120 rows in upper jaw; first dorsal fin slightly behind mid-length, pre-first dorsal length 54.9% TL; pelvic fins slightly forward of mid-length, pre-pelvic length 48.9% TL; vent at middle of body, pre-vent length 50.8% TL; relatively short snout, prenarial length 4.2% TL; short mouth, length 3.6% TL; short labial furrows, lower furrow longer than upper one, 1.7% and 1.2% TL respectively; head is not depressed, the height subequal to its width, with length shorter than abdomen, 19.8% TL; pectoral-pelvic length 25.4% TL; second dorsal fin larger than first, anterior margins of first 5.2% and second 9.3% TL; subterminal caudal lobe relatively small, with subterminal margin length 3.8% TL, terminal margin length 3.6% TL; 47 monospondylous centra; 102 precaudal centra, 144 total centra (Ref. 74543).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Séret, B. and P. Last, 2007. Four new species of deep-water catsharks of the genus Parmaturus (Carcharhiniformes: Scyliorhinidae) from New Caledonia, Indonesia and Australia. Zootaxa 2007:1-17. (Ref. 74543)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-1)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
Tools
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.9 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (48 of 100).
