Genus of sharks
Isistius Temporal range:
56–0 Ma [1]
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Thanetian to Present
Cookiecutter shark (I. brasiliensis )
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Chondrichthyes
Superorder:
Selachimorpha
Order:
Squaliformes
Family:
Dalatiidae
Genus:
Isistius T. N. Gill , 1865
Type species
Isistius brasiliensis
Isistius is a genus of dogfish sharks in the family Dalatiidae . They are commonly known as cookiecutter sharks . Members of the genus are known for their unusual behaviour and dentition.[2]
Species [ ]
Isistius brasiliensis Quoy & Gaimard , 1824 (cookiecutter shark )
Isistius plutodus Garrick & S. Springer , 1964 (largetooth cookiecutter shark )
† Probst, 1879
† Winkler, 1876
Habits [ ]
The cookiecutter sharks , or cigar sharks, are unusual in the manner in which they replace their teeth. Instead of replacing teeth singly as they get damaged or lost, for example in hunting, such sharks replace the whole set. They can repeat such replacement throughout their lifetimes.[3]
Cookiecutter sharks often attack large shoals of fish, but have been known to circle fishing vessels to get an easy meal. They are particularly notorious for biting small chunks off of a prey animal in passing. Large prey, such as swordfish and cetaceans , may bear several healed wounds from such bites.[4]
Weaker prey may be injured enough to be weakened until they are unable to swim properly. They then are prone to sinking, enabling these sharks to gorge. Isistius species can eat half of their own body weight at a time.
See also [ ]
Sharks portal
List of prehistoric cartilaginous fish
References [ ]
^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Chondrichthyes entry)" . Bulletins of American Paleontology . 364 : 560. Archived from the original on 2011-09-30.
^ Jones, E. C. 1971. Isistius brasiliensis. a squaloid shark. the probable cause of crater wounds on fishes and cetaceans; Fish. Bull. 69.791-98.
^ Strasburg, Donald W.; The Diet and Dentition of Isistius brasiliensis, with Remarks on Tooth Replacement in Other Sharks; Copeia, Vol. 1963, No. 1, Mar. 30, 1963 (pp. 33-40) Published by: American Society of Ichthyologists and Herpetologists, Stable URL: https://www.jstor.org/stable/1441272
^ Papastamatiou Yannis P., Wetherbee, Brad M., O'Sullivan, John, Goodmanlowe Gwen D. Lowe, Christopher G.; Foraging ecology of Cookiecutter Sharks (Isistius brasiliensis) on pelagic fishes in Hawaii, inferred from prey bite wounds.; Environmental Biology of Fishes, Volume 88, Number 4, 361-368, doi :10.1007/s10641-010-9649-2
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)