Species of shark
Squalus crassispinus
Conservation status
Least Concern (IUCN 3.1 )[1]
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Chondrichthyes
Superorder:
Selachimorpha
Order:
Squaliformes
Family:
Squalidae
Genus:
Squalus
Species:
S. crassispinus
Binomial name
Squalus crassispinus Last , & , 2007
Squalus crassispinus , the fatspine spurdog , is a dogfish of the family Squalidae , found on the continental shelf off the northern coast of Western Australia , at depths of 180 to 200 metres (590 to 660 ft). The length of the longest male specimen measured is 56 centimetres (22 in).
Squalus crassispinus is a rare, small and slender dogfish with a broad head and short snout. There is a broad, small medial barbel on the anterior nasal flaps. The pectoral fin has a shallowly concave posterior margin. The first dorsal fin is moderately high, and both dorsal fin spines are very stout.
Coloration is light grey above, paler below, with no white spots. The pale dorsal fins have dusky tips.
Its reproduction is ovoviviparous .
References [ ]
Compagno , Dando, & Fowler, Sharks of the World , Princeton University Press, New Jersey 2005 ISBN 0-691-12072-2
Extant shark species
Kingdom Animalia
Phylum Chordata
Subphylum Vertebrata
Class Chondrichthyes
Subclass Elasmobranchii
Subdivision Selachii
Order Carcharhiniformes (Ground sharks)
Hemigaleidae (Weasel sharks)
Leptochariidae
Leptocharias
Barbeled houndshark (L. smithii )
Proscylliidae (Finback sharks)
Pseudotriakidae
Gollum
Slender smooth-hound (G. attenuatus )
Pseudotriakis
False catshark (P. microdon )
Sphyrnidae (Hammerhead sharks)
Eusphyra
Winghead shark (E. blochii )
Sphyrna
Scalloped bonnethead (S. corona )
Whitefin hammerhead (S. couardi )
Scalloped hammerhead (S. lewini )
Scoophead (S. media )
Great hammerhead (S. mokarran )
Bonnethead (S. tiburo )
Smalleye hammerhead (S. tudes )
Smooth hammerhead (S. zygaena )
Triakidae (Houndsharks)
Carcharhinidae
Large family listed below
Scyliorhinidae
Large family listed below
Family Carcharhinidae (Requiem sharks)
Carcharhinus
Blacknose shark (C. acronotus )
Silvertip shark (C. albimarginatus )
Bignose shark (C. altimus )
Graceful shark (C. amblyrhynchoides )
Grey reef shark (C. amblyrhynchos )
Pigeye shark (C. amboinensis )
Borneo shark (C. borneensis )
Copper shark (C. brachyurus )
Spinner shark (C. brevipinna )
Nervous shark (C. cautus )
Whitecheek shark (C. dussumieri )
Silky shark (C. falciformis )
Creek whaler (C. fitzroyensis )
Galapagos shark (C. galapagenisis )
Pondicherry shark (C. hemiodon )
Finetooth shark (C. isodon )
Smoothtooth blacktip shark (C. leiodon )
Bull shark (C. leucas )
Blacktip shark (C. limbatus )
Oceanic whitetip shark (C. longimanus )
Hardnose shark (C. macloti )
Blacktip reef shark (C. melanopterus )
Dusky shark (C. obscurus )
Caribbean reef shark (C. perezii )
Sandbar shark (C. plumbeus )
Smalltail shark (C. porosus )
Blackspot shark (C. sealei )
Night shark (C. signatus )
Spottail shark (C. sorrah )
Australian blacktip shark (C. tilstoni )
Galeocerdo Glyphis (River sharks)
Ganges shark (G. gangeticus )
Northern river shark (G. garricki )
Speartooth shark (G. glyphis )
Irrawaddy river shark (G. siamensis )
Borneo river shark (Glyphis sp. B )
Isogomphodon
Daggernose shark (I. oxyrhynchus )
Lamiopsis Loxodon Nasolamia Negaprion
Sicklefin lemon shark (N. acutidens )
Lemon shark (N. brevirostris )
Prionace Rhizoprionodon Scoliodon
Spadenose shark (S. laticaudus )
Triaenodon
Whitetip reef shark (T. obesus )
Family Scyliorhinidae (Catsharks)
Order Heterodontiformes (Bullhead sharks)
Chlamydoselachidae
Chlamydoselachus
Frilled shark (C. anguineus )
Southern African frilled shark (C. africana )
Hexanchidae (Cow sharks)
Heptranchias Hexanchus
Bluntnose sixgill shark (H. griseus )
Bigeyed sixgill shark (H. nakamurai )
Notorynchus
Broadnose sevengill shark (N. cepedianus )
Order Lamniformes (Mackerel sharks)
Alopiidae
Alopias (Thresher sharks)
Pelagic thresher (A. pelagicus )
Bigeye thresher (A. superciliosus )
Common thresher (A. vulpinus )
Alopias sp. (A. sp. )
Cetorhinidae
Cetorhinus
Basking shark (C. maximus )
Lamnidae
Carcharodon
Great white shark (C. carcharias )
Isurus
Shortfin mako shark (I. oxyrinchus )
Longfin mako shark (I. paucus )
Lamna
Salmon shark (L. ditropis )
Porbeagle (L. nasus )
Megachasmidae
Megachasma
Megamouth shark (M. pelagios )
Mitsukurinidae
Mitsukurina
Goblin shark (M. owstoni )
Odontaspididae
Carcharias
Grey nurse shark (C. taurus )
Indian sand tiger (C. tricuspidatus )
Odontaspis
Smalltooth sand tiger (O. ferox )
Bigeye sand tiger (O. noronhai )
Pseudocarchariidae
Pseudocarcharias
Crocodile shark (P. kamoharai )
Order Orectolobiformes (Carpet sharks)
Brachaeluridae
Brachaelurus Heteroscyllium
Bluegrey carpetshark (H. colcloughi )
Ginglymostomatidae (Nurse sharks)
Ginglymostoma
Nurse shark (G. cirratum )
Nebrius
Tawny nurse shark (N. ferrugineus )
Pseudoginglymostoma
Short-tail nurse shark (P. brevicaudatum )
Hemiscylliidae (Bamboo sharks)
Chiloscyllium
Arabian carpetshark (C. arabicum )
Burmese bamboo shark (C. burmensis )
Bluespotted bamboo shark (C. caerulopunctatum )
Grey bamboo shark (C. griseum )
Hasselt's bamboo shark (C. hasseltii )
Slender bamboo shark (C. indicum )
Whitespotted bamboo shark (C. plagiosum )
Brownbanded bamboo shark (C. punctatum )
Hemiscyllium
Indonesian speckled carpetshark (H. freycineti )
H. galei
Papuan epaulette shark (H. hallstromi )
H. henryi
Epaulette shark (H. ocellatum )
Hooded carpetshark (H. strahani )
Speckled carpetshark (H. trispeculare )
Orectolobidae (Wobbegongs)
Parascylliidae (Collared carpet sharks)
Rhincodontidae
Stegostomatidae
Stegostoma
Zebra shark (S. fasciatum )
Order Pristiophoriformes (Sawsharks)
Order Squaliformes
Centrophoridae (Gulper sharks)
Centrophorus
Needle dogfish (C. acus )
Dwarf gulper shark (C. atromarginatus )
Gulper shark (C. granulosus )
Dumb gulper shark (C. harrissoni )
Blackfin gulper shark (C. isodon )
Lowfin gulper shark (C. lusitanicus )
Smallfin gulper shark (C. moluccensis )
Taiwan gulper shark (C. niaukang )
Leafscale gulper shark (C. squamosus )
Mosaic gulper shark (C. tessellatus )
Little gulper shark (C. uyato )
Deania
Dalatiidae
Euprotomicroides
Taillight shark (E. zantedeschia )
Heteroscymnoides
Longnose pygmy shark (H. marleyi )
Mollisquama Dalatias Isistius
Cookiecutter shark (I. brasiliensis )
South China cookiecutter shark (I. labialis )
Largetooth cookiecutter shark (I. plutodus )
Euprotomicrus Squaliolus
Smalleye pygmy shark (S. aliae )
Spined pygmy shark (S. laticaudus )
Etmopteridae
Aculeola
Hooktooth dogfish (A. nigra )
Centroscyllium Etmopterus (Lantern sharks) Miroscyllium
Rasptooth dogfish (M. sheikoi )
Trigonognathus
Viper dogfish (T. kabeyai )
Oxynotidae (Rough sharks)
Somniosidae (Sleeper sharks)
Squalidae (Dogfish sharks)
Order Squatiniformes (Angel sharks)