Bathyraja leucomelanos, Domino skate

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Bathyraja leucomelanos Iglésias & Lévy-Hartmann, 2012

Domino skate
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Bathyraja leucomelanos
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Classification / Names ຊື່ສາມັນ | ຄຳສັບຄ້າຍຄືກັນ | Catalog of Fishes(ຕະກຸນ, ຊະນິດ) | ITIS | CoL | WoRMS | Cloffa

ກຸ່ມປາກະດູກອ່ອນ (ເຊັ່ນ: ປາສະຫລາມ, ປາຜາໄລ) (sharks and rays) > Rajiformes (Skates and rays) > Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335);  leucomelanos: The species name leucomelanos, derived from the Greek leuco (white) and melanos (black), refers to the coloration with white and black dorsal and ventral surfaces, respectively.

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

; ສັດທະເລ ກ່ຽວກັບ(ຢູ່)ຊັ້ນນ້ຳໃນທະເລທີ່ເໜີອພື້ນດິນ, usually 953 - 1022 m (Ref. 89184).   Tropical; 20°S - 22°S, 157°E - 160°E (Ref. 114953)

ການແຜ່ກະຈາຍ ປະເທດ | ເຂດ FAO | ລະບົບນິເວດ | ການປະກົດຕົວ | Point map | ການແນະນຳ | Faunafri

Southwest Pacific: Coral Sea (off New Caledonia).

ຂະໜາດ / ນ້ຳໜັກ / Age

Maturity: Lm ?  range ? - ? cm
Max length : 88.8 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 89184)

Short description ສະລີລະວິທະຍາ | ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…

A medium-sized species of Bathyraja with the following combination of characters: snout long, pointed and very broad, supported by a slender flexible medial cartilage; margin of disc (anterior two-thirds) straight. Orbit about 6.0 times in preorbital length and 0.73 times interorbital width. Mouth moderately broad, 6.8% TL; outer margins of nasal curtain with distinct, broadly triangular lobelet immediately posterior to each nostril; posterior margin of nasal curtain with prominent fringes. Tail of moderate length (about 0.9 times precloacal length), slightly depressed and slender; lateral skin fold moderately developed. Dorsal surface of disc and tail entirely covered with small and fine dermal denticles; ventral surface naked; disc entirely free of enlarged thorns; tail with single median row of 18 large thorns laterally compressed. Dorsal fins small, oblique, about equal in height; epichordal caudal-fin lobe developed. Dorsal surface mostly uniformly white except for black color along disc and tail margins, anterior lobes of pelvic fins, claspers, and dorsal fins. Ventral surface entirely black. Clasper glans with pseudosiphon and component projection; ventral terminal cartilage spoonlike; accessory terminal 2 cartilage with an expanded disc-shaped tip. Distal section of crowns of alar thorns undulating. Tooth rows: 30 in upper jaw, 28 in lower jaw; trunk centra 35; predorsal caudal centra 70; diplospondylous centra 109; pectoral-fin radials 88 (Ref. 89184).

ຊີວະສາດ     ຄຳແປສັບ (ຕ.ຢ. epibenthic)

Probably a benthic species, found more widespread on deep insular slopes of Coral Sea (Ref. 114953).

Life cycle and mating behavior ການຈະເລີນເຕັມໄວ | ການສືບພັນ | ການວາງໄຂ່ | ໄຂ່ | ຄວາມດົກຂອງໄຂ່ປາ | ຕົວອ່ອນ

Main reference Upload your references | ເອກະສານອ້າງອີງ | ຜູ້ປະສານງານ : McEachran, John | ຜູ້ຮ່ວມມື

Iglésias, S.P. and L. Lévy-Hartmann, 2012. Bathyraja leucomelanos, a new species of softnose skate (Chondrichthyes: Arhynchobatidae) from New Caledonia. Ichthyol. Res. 59(1):38-48. (Ref. 89184)

IUCN Red List Status (Ref. 123251)

  Least Concern (LC) ; Date assessed: 21 June 2017

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

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ແຫຼ່ງອີນເຕີເນັດ

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00254 - 0.01037), b=3.11 (2.94 - 3.28), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
ຊັ້ນເຂດຮ້ອນ (Ref. 69278):  4.0   ±0.7 se; based on size and trophs of closest relatives
ຄວາມຢືດຢຸ່ນ (Ref. 120179):  ຕຳ່, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງເທົ່າ 4.5 - 14 ປີ ().
Vulnerability (Ref. 59153):  High to very high vulnerability (66 of 100) .