bio.wikisort.org - AnimalThe tropical sawshark, Pristiophorus delicatus, is a recently described species of sawshark, family Pristiophoridae, formerly known in literature as Pristiophorus sp. B. It is endemic to northeastern Australia, found on the upper continental slope off Queensland from south of the Samaurez Reef, at a depth of 246–405 meters (807–1,329 ft). Its specific epithet delicatus is Latin for "delicate", referring to the fine teeth on its saw-like rostrum.[3]
Species of shark
Tropical sawshark |
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Conservation status |
 Least Concern (IUCN 3.1)[1] |
Scientific classification  |
Kingdom: |
Animalia |
Phylum: |
Chordata |
Class: |
Chondrichthyes |
Superorder: |
Selachimorpha |
Order: |
Pristiophoriformes |
Family: |
Pristiophoridae |
Genus: |
Pristiophorus |
Species: |
P. delicatus |
Binomial name |
Pristiophorus delicatus
Yearsley, Last & W. T. White, 2008 |
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Range of the Tropical sawshark |
Synonyms |
Pristiophorus peroniensis Yearsley, Last & White, 2008[2] |
Sharks portal
This is a small species; the maximum known length is 85 cm (33 in) for females and 63 cm (25 in) for males (although no mature males have yet been examined). The body is slender with a circular cross-section, and depressed forward of the gill slits. The elongated, saw-like snout tapers evenly to its tip, and bears very slender lateral teeth of variable length and a pair of filamentous, dorsoventrally flattened barbels. The eyes are large and oval in shape. Its nostrils about one-third the distance from the corner of the mouth to the barbel attachment on the rostrum.[4] The mouth is large and broadly arched; there are 47 tooth rows in the upper jaw and 37 in the lower. The teeth have flattened, oval bases and a single narrow, pointed cusp. The pectoral fins are large with narrowed rounded tips and weakly concave rear margins. The two dorsal fins are well-separated, the first longer and broader than the second. The caudal fin is short, with the lower lobe absent.[3]
The coloration is medium brown above and white below; there are pronounced white rear margins on the dorsal and caudal fins. The paired fins are mostly pale with brownish basal portions clearly demarcated from the rest of the fin.[3] Very little is known of the biology of the tropical sawshark; its small size may indicate that it is reproductively productive. There is little fishing pressure within its range, and so it is classified as of Least Concern by the World Conservation Union.[1]
References
- Cavanagh, R.D.; Kyne, P.M.; Fowler, S.L.; Musick, J.A. & Bennett, M.B. (2003). The Conservation Status of Australasian Chondrichthyans. Brisbane: The University of Queensland, School of Biomedical Sciences. ISBN 0-9751041-1-X.
- Pristiophorus delicatus, Encyclopedia of Life, http://www.eol.org/pages/7199561
- Yearsley, G.K.; Last, P.R. & White, W.T. (26 June 2008). "A new species of sawshark, Pristiophorus delicatus sp. nov (Pristiophoriformes: Pristiophoridae), from northeastern Australia". In Last, P.R.; White, W.T. & Pogonoski, J.J. (eds.). Descriptions of New Australian Chondrichthyans. Hobart: CSIRO Marine and Atmospheric Research. pp. 23–34.
- Dianne J. Bray, 2011, Pristiophorus delicatus, in Fishes of Australia, Retrieved 16 Oct 2014, http://www.fishesofaustralia.net.au/home/species/2611
External links
Extant shark species |
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- Kingdom Animalia
- Phylum Chordata
- Subphylum Vertebrata
- Class Chondrichthyes
- Subclass Elasmobranchii
- Subdivision Selachii
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Order Carcharhiniformes (Ground sharks) |
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Hemigaleidae (Weasel sharks) | Hemipristis | |
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Chaenogaleus |
- Hooktooth shark (C. macrostoma)
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Hemigaleus | |
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Paragaleus | |
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Leptochariidae | Leptocharias |
- Barbeled houndshark (L. smithii)
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Proscylliidae (Finback sharks) | Ctenacis | |
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Eridacnis | |
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Proscyllium |
- Graceful catshark (P. habereri)
- P. venustum
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Pseudotriakidae | Gollum |
- Slender smooth-hound (G. attenuatus)
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Pseudotriakis |
- False catshark (P. microdon)
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Sphyrnidae (Hammerhead sharks) | Eusphyra |
- Winghead shark (E. blochii)
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Sphyrna | |
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Triakidae (Houndsharks) | Furgaleus |
- Whiskery shark (F. macki)
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Galeorhinus | |
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Gogolia | |
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Hemitriakis | |
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Hypogaleus | |
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Iago | |
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Mustelus (Smooth-hounds) | |
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Scylliogaleus |
- Flapnose houndshark (S. quecketti)
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Triakis | |
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Carcharhinidae |
- Large family listed below
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Scyliorhinidae |
- Large family listed below
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Family Carcharhinidae (Requiem sharks) |
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Carcharhinus | |
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Galeocerdo | |
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Glyphis (River sharks) | |
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Isogomphodon | |
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Lamiopsis |
- Broadfin shark (L. temminckii)
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Loxodon | |
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Nasolamia | |
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Negaprion | |
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Prionace | |
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Rhizoprionodon | |
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Scoliodon |
- Spadenose shark (S. laticaudus)
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Triaenodon |
- Whitetip reef shark (T. obesus)
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Family Scyliorhinidae (Catsharks) |
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Apristurus | |
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Asymbolus |
- Australian spotted catshark (A. analis)
- A. funebris
- Western spotted catshark (A. occiduus)
- Pale spotted catshark (A. pallidus)
- A. parvus
- A. rubiginosus
- Variegated catshark (A. submaculatus)
- Gulf catshark (A. vincenti)
|
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Atelomycterus |
- A. baliensis
- Banded sand catshark (A. fasciatus)
- Australian marbled catshark (A. macleayi)
- Coral catshark (A. marmoratus)
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Aulohalaelurus | |
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Cephaloscyllium |
- Whitefin swellshark (C. albipinnum)
- Circle-blotch pygmy swellshark (C. circulopullum)
- Cook's swellshark (C. cooki)
- Reticulated swellshark (C. fasciatum)
- Formosa swellshark (C. formosanum)
- Australian reticulate swellshark (C. hicosellum)
- Draughtsboard shark (C. isabellum)
- Australian swellshark (C. laticeps)
- Spotted swellshark (C. maculatum)
- Leopard-spotted swellshark (C. pardelotum)
- Painted swellshark (C. pictum)
- Sarawak pygmy swellshark (C. sarawakensis)
- Flagtail swellshark (C. signourum)
- Indian swellshark (C. silasi)
- Speckled swellshark (C. speccum)
- Balloon shark (C. sufflans)
- Blotchy swellshark (C. umbratile)
- Saddled swellshark (C. variegatum)
- Swellshark (C. ventriosum)
- Narrowbar swellshark (C. zebrum)
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Cephalurus | |
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Figaro |
- Australian sawtail catshark (F. boardmani)
- Northern sawtail catshark (F. striatus)
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Galeus | |
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Halaelurus | |
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Haploblepharus |
- Puffadder shyshark (H. edwardsii)
- Brown shyshark (H. fuscus)
- Natal shyshark (H. kistnasamyi)
- Dark shyshark (H. pictus)
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Holohalaelurus |
- H. favus
- H. grennian
- Crying izak (H. melanostigma)
- African spotted catshark (H. punctatus)
- Izak catshark (H. regani)
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Parmaturus | |
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Pentanchus | |
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Poroderma |
- Pyjama catshark (P. africanum)
- Leopard catshark (P. pantherinum)
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Schroederichthys | |
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Scyliorhinus | |
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Order Echinorhiniformes (Bramble sharks) |
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Order Heterodontiformes (Bullhead sharks) |
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Order Hexanchiformes |
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Chlamydoselachidae | Chlamydoselachus |
- Frilled shark (C. anguineus)
- Southern African frilled shark (C. africana)
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Hexanchidae (Cow sharks) | Heptranchias |
- Sharpnose sevengill shark (H. perlo)
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Hexanchus |
- Bluntnose sixgill shark (H. griseus)
- Bigeyed sixgill shark (H. nakamurai)
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Notorynchus | |
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Order Lamniformes (Mackerel sharks) |
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Alopiidae | Alopias (Thresher sharks) | |
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Cetorhinidae | Cetorhinus |
- Basking shark (C. maximus)
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Lamnidae | Carcharodon |
- Great white shark (C. carcharias)
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Isurus | |
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Lamna | |
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Megachasmidae | Megachasma |
- Megamouth shark (M. pelagios)
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Mitsukurinidae | |
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Odontaspididae | Carcharias |
- Grey nurse shark (C. taurus)
- Indian sand tiger (C. tricuspidatus)
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Odontaspis | |
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Pseudocarchariidae | Pseudocarcharias |
- Crocodile shark (P. kamoharai)
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Order Orectolobiformes (Carpet sharks) |
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Brachaeluridae | Brachaelurus | |
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Heteroscyllium |
- Bluegrey carpetshark (H. colcloughi)
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Ginglymostomatidae (Nurse sharks) | |
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Hemiscylliidae (Bamboo sharks) | Chiloscyllium | |
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Hemiscyllium | |
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Orectolobidae (Wobbegongs) | Eucrossorhinus |
- Tasselled wobbegong (E. dasypogon)
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Orectolobus | |
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Sutorectus |
- Cobbler wobbegong (S. tentaculatus)
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Parascylliidae (Collared carpet sharks) | Cirrhoscyllium | |
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Parascyllium |
- Collared carpetshark (P. collare)
- Rusty carpetshark (P. ferrugineum)
- Ginger carpetshark (P. sparsimaculatum)
- Necklace carpetshark (P. variolatum)
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Rhincodontidae | |
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Stegostomatidae | |
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Order Pristiophoriformes (Sawsharks) |
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Pristiophoridae | Pliotrema |
- Sixgill sawshark (P. warreni)
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Pristiophorus | |
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Order Squaliformes |
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Centrophoridae (Gulper sharks) | |
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Dalatiidae | Euprotomicroides |
- Taillight shark (E. zantedeschia)
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Heteroscymnoides |
- Longnose pygmy shark (H. marleyi)
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Mollisquama | |
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Dalatias | |
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Isistius |
- Cookiecutter shark (I. brasiliensis)
- South China cookiecutter shark (I. labialis)
- Largetooth cookiecutter shark (I. plutodus)
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Euprotomicrus |
- Pygmy shark (E. bispinatus)
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Squaliolus |
- Smalleye pygmy shark (S. aliae)
- Spined pygmy shark (S. laticaudus)
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Etmopteridae | Aculeola |
- Hooktooth dogfish (A. nigra)
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Centroscyllium |
- Highfin dogfish (C. excelsum)
- Black dogfish (C. fabricii)
- Granular dogfish (C. granulatum)
- Bareskin dogfish (C. kamoharai)
- Combtooth dogfish (C. nigrum)
- Ornate dogfish (C. ornatum)
- Whitefin dogfish (C. ritteri)
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Etmopterus (Lantern sharks) |
- New Zealand lanternshark (E. baxteri)
- Blurred lanternshark (E. bigelowi)
- Shorttail lanternshark (E. brachyurus)
- Lined lanternshark (E. bullisi)
- E. burgessi
- Cylindrical lanternshark (E. carteri)
- Tailspot lanternshark (E. caudistigmus)
- Combtooth lanternshark (E. decacuspidatus)
- Pink lanternshark (E. dianthus)
- E. dislineatus
- Blackmouth lanternshark (E. evansi)
- Pygmy lanternshark (E. fusus)
- Broadbanded lanternshark (E. gracilispinis)
- Southern lanternshark (E. granulosus)
- Caribbean lanternshark (E. hillianus)
- Smalleye lantern shark (E. litvinovi)
- Blackbelly lanternshark (E. lucifer)
- Slendertail lanternshark (E. molleri)
- Dwarf lanternshark (E. perryi)
- African lanternshark (E. polli)
- Great lanternshark (E. princeps)
- False lanternshark (E. pseudosqualiolus)
- Smooth lanternshark (E. pusillus)
- Dense-scale lantern shark (E. pycnolepis)
- West Indian lanternshark (E. robinsi)
- Fringefin lanternshark (E. schultzi)
- Thorny lanternshark (E. sentosus)
- Velvet belly lantern shark (E. spinax)
- Splendid lanternshark (E. splendidus)
- Tasmanian lanternshark (E. tasmaniensis)
- Brown lanternshark (E. unicolor)
- Hawaiian lanternshark (E. villosus)
- Green lanternshark (E. virens)
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Miroscyllium |
- Rasptooth dogfish (M. sheikoi)
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Trigonognathus | |
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Oxynotidae (Rough sharks) | |
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Somniosidae (Sleeper sharks) | Centroscymnus | |
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Centroselachus | |
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Proscymnodon |
- Largespine velvet dogfish (P. macracanthus)
- Plunket shark (P. plunketi)
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Scymnodalatias |
- Whitetail dogfish (S. albicauda)
- Azores dogfish (S. garricki)
- Sparsetooth dogfish (S. oligodon)
- Sherwood dogfish (S. sherwoodi)
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Scymnodon |
- Smallmouth velvet dogfish (S. obscurus)
- Knifetooth dogfish (S. ringens)
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Somniosus | |
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Zameus | |
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Squalidae (Dogfish sharks) | Cirrhigaleus |
- Roughskin spurdog (C. asper)
- Mandarin dogfish (C. barbifer)
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Squalus (Spurdogs) |
- Spiny dogfish (S. acanthias)
- Eastern highfin spurdog (S. albifrons)
- S. acutirostris
- Western highfin spurdog (S. altipinnis)
- Longnose spurdog (S. blainville)
- Fatspine spurdog (S. crassispinus)
- Cuban dogfish (S. cubensis)
- Eastern longnose spurdog (S. grahami)
- Japanese spurdog (S. japonicus)
- Shortnose spurdog (S. megalops)
- Blacktailed spurdog (S. melanurus)
- Shortspine spurdog (S. mitsukurii)
- Bartail spurdog (S. notocaudatus)
- Western longnose spurdog (S. nasutus)
- Cyrano spurdog (S. rancureli)
- Pacific spiny dogfish (S. suckleyi)
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Order Squatiniformes (Angel sharks) |
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На других языках
- [en] Tropical sawshark
[ru] Pristiophorus delicatus
Pristiophorus delicatus (лат.) — вид хрящевых рыб рода пилоносов семейства пилоносых акул. Эти акулы обитают в западной части Тихого океана на глубине до 405 м. Максимальная зарегистрированная длина 84,5 см. У этих акул рыло сильно вытянуто и образует пилообразный плоский рострум с латеральными зубцами и чувствительными усиками. Окраска коричневого цвета. Хвостовой плавник короткий, анальный плавник отсутствует. Акулы этого вида не представляют интереса для коммерческого рыбного промысла[1].
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