Elasmobranchi (squali e razze) (sharks and rays) >
Rajiformes (Skates and rays) >
Anacanthobatidae (Smooth skates)
Etymology: caerulea: Name from Latin ‘caeruleus’, allusion to its blue dorsal and ventral coloration.
More on authors: Last & Séret.
Issue
Provisionally placed in Sinobatis in the absence of adult males being available for examination (Ref. 75174).
Environment: milieu / climate zone / distribuzione batimetrica / distribution range
Ecologia
marino batidemersale; distribuzione batimetrica 482 - 1168 m (Ref. 75174). Tropical; 21°S - 26°S, 111°E - 114°E (Ref. 75174)
Eastern Indian Ocean: off Western Australia (Refs. 75174, 114953).
Size / Peso / Age
Maturità: Lm ? range ? - ? cm
Max length : 69.0 cm TL maschio/sesso non determinato; (Ref. 75174)
Short description
Chiavi di identificazione | Morfologia | Morfometria
This species is distinguished by the following set of characters: disc large, width at anterior orbit 8.0-9.1 times mouth width; tail short, postcloacal length 35-42% of disc length; eyes relatively small, orbit diameter 10.9-15.7 in horizontal snout and 13.1-17.9 in head lengths respectively; distal portion of tail weakly or slightly expanded, width of tail near tip 1.5-1.6 times tail width at its midlength; pectoral-fin radials 72-76; moderate-sized pelvic fins, anterior lobe 15.4-16.0% TL; anterior pelvic-fin lobe rather broad-based, width 1.7-2.2 in distance between pelvic-fin origins; caudal fin rudimentary; tooth rows in each jaw of adults 24-30; monospondylous vertebral centra 26-29, total centra 184-212; dorsal and ventral surfaces bluish in fresh specimens (Ref. 75174)..
Body shape (shape guide): other.
Found on upper continental slope. Life history unknown but presumably feeds on invertebrates and bony fishes (Ref. 114953).
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
Last, P.R. and B. Séret, 2008. Three new legskates of the genus Sinobatis (Rajoidei: Anacanthobatidae) from the Indo-West Pacific. Zootaxa 1671:33-58. (Ref. 75174)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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Estimates based on models
Preferred temperature (Fonte Biblio.
123201): 4.7 - 5.6, mean 5.1 °C (based on 9 cells).
Phylogenetic diversity index (Fonte Biblio.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Fonte Biblio.
69278): 3.8 ±0.7 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (48 of 100).
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