Porcupinefish

From Wikipedia, the free encyclopedia

Porcupinefish
Porcupinefish (Diodon nicthemerus)Photo by [http://www.flickr.com/photos/mikkelelbech/ Mikkel Elbech]
Porcupinefish (Diodon nicthemerus)
Photo by Mikkel Elbech
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Tetraodontiformes
Family: Diodontidae
Genera

See text for genera and species.

Porcupinefish are fish of the family Diodontidae, (order Tetraodontiformes), also commonly called blowfish (and, sometimes, "balloonfish", pufferfish and "globefish").

They are sometimes confused with pufferfish. Porcupinefish are closely related to pufferfishes but porcupinefish have spines (reminiscent of porcupines) on their body.

Porcupinefish have the ability to inflate their body by swallowing water (or air) and become round like a ball. This increase in size (almost double vertically) reduces the range of potential predators to those with much bigger mouths. A second defense mechanism is provided by the sharp spines, which radiate outwards when the fish is inflated. Some species are poisonous, having a tetrodotoxin in their skin and/or intestines. As a result porcupinefish have few predators, although adults are rarely preyed upon by sharks and orcas. Juveniles are also preyed on by tuna and dolphins.

[edit] Species

  • Genus Allomycterus
  • Genus Chilomycterus (Burrfishes, Spiny Boxfishes)
    • Pacific burrfish, Chilomycterus affinis Gu:nther, 1870
    • Bridled burrfish, Chilomycterus antennatus (Cuvier, 1816)
    • Web burrfish, Chilomycterus antillarum Jordan & Rutter, 1897
    • Spotted burrfish, Chilomycterus atringa (Linnaeus, 1758)
    • Chilomycterus geometricus (Bloch & Schneider, 1801)
    • Spotfin burrfish, Chilomycterus reticulatus (Linnaeus, 1758)
    • Striped burrfish, Chilomycterus schoepfii (Walbaum, 1792)
    • Guinean burrfish, Chilomycterus spinosus mauretanicus (Le Danois, 1954)
    • Chilomycterus spinosus spinosus (Linnaeus, 1758)
      Chilomycterus geometricus
      Chilomycterus geometricus
  • Genus Cyclichthys (Swelltoads)
  • Genus Dicotylichthys
    • Three-barred porcupinefish, Dicotylichthys punctulatus Kaup, 1855
  • Genus Diodon (Porcupinefishes)
  • Genus Lophodiodon
    • Four-bar porcupinefish, Lophodiodon calori (Bianconi, 1854)
  • Genus Tragulichthys
    • Longspine burrfish, Tragulichthys jaculiferus (Cuvier, 1818)

[edit] See also

[edit] References