Indobatis ori, Black legskate

Indobatis ori (Wallace, 1967)

Black legskate
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Indobatis ori   AquaMaps   Data sources: GBIF OBIS
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Image of Indobatis ori (Black legskate)
Indobatis ori
Male picture by Weigmann, S.

Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (haaien en roggen) (sharks and rays) > Rajiformes (Skates and rays) > Anacanthobatidae (Smooth skates)
Etymology: Indobatis: Name refers to the distribution of the genus in the western Indian Ocean (Greek 'Indos' for India, 'batis' for skate or ray)..

Environment: milieu / climate zone / depth range / distribution range Ecologie

; marien bathydemersaal; diepteverspreiding 1000 - 1725 m (Ref. 5578).   Deep-water; 15°S - 30°S

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Point map | Introducties | Faunafri

Western Indian Ocean: off off Mozambique and Madagascar.

Size / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 42.9 cm TL mannelijk/geslacht niet bekend; (Ref. 95335)

Korte beschrijving Morfologie | Morfometrie

This medium sized species grows to about 42.9 cm TL and has the following set of diagnostic characters: disc 0.9-1.1 times as wide as long and with rounded outer corners, it is extremely depressed pear-shaped to broadly inverse heart-shaped (in adult male); snout angle 85-106° and larger in juveniles; snout terminally expanded as a rostral lobe that is 9-12% of preorbital snout length; further juveniles with a short, thin rostral filament; narrow interorbital distance, 2-3% of TL; inner margin of posterior pelvic lobe fused along its entire length to root of tail; length of tail from mid-vent about equal to body length from tip of rostral lobe to mid-vent in adults, but 1.5 times body length in juveniles; surface of upper and lower disc and tail entirely naked except for 2 longitudinal rows of alar thorns in adult male; the tail with 2 lateral rows of fleshy, tubular papillae; colour of upper and lower surfaces dark grayish-brown, but ventral surface somewhat darker; upper jaw with 18=26 tooth rows; monospondylous vertebral centra 25-29; scapulocoracoid subrectangular, the rear corner sharply marked; large oval anterior fenestra no anterior bridge, one very large oval postdorsal and 5 minute to small postventral fenestrae; pelvic girdle with massive ischiopubic bar with straight to weakly concave anterior and deeply concave posterior contour; prepelvic processes are very long and inclined outwards, their length from axis of pelvic girdle maximal width 3.9-5.3 times median thickness of ischiopubic bar (Ref. 95335).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Found on the slope (Ref. 5578). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsule measures 36.0 mm long and 19.0 mm wide (Ref. 41249). Taken only by deep-trawling research vessels (Ref. 5578).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).

Voornaamste referentie Upload your references | Referenties | Coördinator | Medewerkers

McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)

Status op de Rode Lijst van het IUCN (Ref. 123251)

  Niet bedreigd (LC) ; Date assessed: 24 December 2018

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





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Estimates based on models

Preferred temperature (Ref. 115969): 3.9 - 5.6, mean 4.7 °C (based on 16 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [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 (Ref. 69278):  3.7   ±0.6 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Assuming fecundity<100).
Kwetsbaarheid (Ref. 59153):  Moderate vulnerability (36 of 100) .