Lamniformes

Taxobox
name = Lamniformes

---

image_width = 250px
image_caption = Great white shark, "Carcharodon carcharias"
regnum = Animalia
phylum = Chordata
classis = Chondrichthyes
subclassis = Elasmobranchii
ordo = Lamniformes
ordo_authority = Berg, 1958
subdivision_ranks = Families
subdivision = See text for families, genera and species

Lamniformes is an order of sharks, also known as mackerel sharks (which may also be used to refer to the sub-group of Lamniformes, Lamnidae). It includes some of the most familiar species of sharks, such as the great white shark, and some extremely rare types, such as the megamouth shark.

Characteristics of the order include: two dorsal fins, an anal fin, five gill slits, eyes without nictitating membrane, and mouth extending behind the eyes.

Classification

Family Alopiidae" (thresher sharks)
* "Alopias"
** Pelagic thresher, "Alopias pelagicus" Nakamura, 1935 [http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID=5891&genusname=Alopias&speciesname=pelagicus]
** Bigeye thresher, "Alopias superciliosus" (Lowe, 1841) [http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID=2534&genusname=Alopias&speciesname=superciliosus]
** Thintail thresher, "Alopias vulpinus" (Bonnaterre, 1788) [http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID=2535&genusname=Alopias&speciesname=vulpinus]
** Alopias sp.

Family Cetorhinidae" (basking shark)
* "Cetorhinus"
** Basking shark, "Cetorhinus maximus" (Gunnerus, 1765) [http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID=90&genusname=Cetorhinus&speciesname=maximus]

Family Lamnidae" (mackerel sharks)
* "Carcharodon"
** Great white shark, "Carcharodon carcharias" (Linnaeus, 1758) [http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID=751&genusname=Carcharodon&speciesname=carcharias]
** Megatooth shark, "Carcharodon megalodon" Agassiz, 1843 Extinct
* "Isurus"
** Shortfin mako, "Isurus oxyrinchus" Rafinesque, 1810 [http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID=752&genusname=Isurus&speciesname=oxyrinchus]
** Longfin mako, "Isurus paucus" Guitart Manday, 1966 [http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID=753&genusname=Isurus&speciesname=paucus]
* "Lamna"
** Salmon shark, "Lamna ditropis" Hubbs & Follett, 1947 [http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID=755&genusname=Lamna&speciesname=ditropis]
** Porbeagle shark, "Lamna nasus" (Bonnaterre, 1788) [http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID=88&genusname=Lamna&speciesname=nasus]

Family Megachasmidae" (megamouth shark)
* "Megachasma"
** Megamouth shark, "Megachasma pelagios" Taylor, Compagno & Struhsaker, 1983 [http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID=5909&genusname=Megachasma&speciesname=pelagios]

Family Mitsukurinidae" (goblin shark)
* "Mitsukurina"
** Goblin shark, "Mitsukurina owstoni" Jordan, 1898 [http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID=5910&genusname=Mitsukurina&speciesname=owstoni]

Family Odontaspididae (Raggedtooths)
* "Carcharias"
** Grey nurse shark or sand tiger shark, "Carcharias taurus" Rafinesque, 1810 [http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID=747&genusname=Carcharias&speciesname=taurus]
** Indian sand tiger, "Carcharias tricuspidatus" Day, 1878 [http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID=748&genusname=Carcharias&speciesname=tricuspidatus]
* "Odontaspis"
** Smalltooth sand tiger or bumpytail raggedtooth, "Odontaspis ferox" (Risso, 1810) [http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID=749&genusname=Odontaspis&speciesname=ferox]
** Bigeye sand tiger, "Odontaspis noronhai" (Maul, 1955) [http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID=750&genusname=Odontaspis&speciesname=noronhai]

Family Pseudocarchariidae" (crocodile shark)
* "Pseudocarcharias"
** Crocodile shark, "Pseudocarcharias kamoharai" (Matsubara, 1936) [http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID=5923&genusname=Pseudocarcharias&speciesname=kamoharai]

External links

* [http://www.elasmo-research.org/education/topics/d_checklist.htm elasmo-research]