Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Notoraja: Greek, noton = back + Latin, raja = fish, Raja sp. (Ref. 45335).
Eponymy: Yuri Nikolaevich Shcherbachev works at the P P Shirov Institute of Oceanography, Russian Academy of Sciences. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 1064 - 1624 m (Ref. 123885). Deep-water
Distribution
Territories | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Southeastern Indian Ocean: Broken and East Indiaman ridges. High Seas only.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 65.7 cm TL male/unsexed; (Ref. 123885)
Short description
Identification keys | Morphology | Morphometrics
This species possess the following characters: adults with four orbital thorns per side; distinctly smaller dorsolateral tail thorns, median tail thorns up to 60; lateral tail folds in posterior half of tail only; snout length 4.4-5.2 times orbit diameter; upper jaw tooth rows 34-40; pectoral-fin radials 63-66. Colouration: adults are blackish-gray dorsally and darker blackish-brown with white ampular pores ventrally, but paler violet-brown in juveniles (Ref. 123885).
Cross section: flattened.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Dolganov, V.N., 2020. Notoraja yurii sp. n. (Arhynchobatidae: Rajoidei), a new skate species from the Thalassobathyal Zone of the Indian Ocean. Biologiya Morya (Vladivostok) 46(1):60-64. (Ref. 123903)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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