Cyclichthys
Cyclichthys spilostylus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Tetraodontiformes
Family: Diodontidae
Genus: Cyclichthys
Kaup, 1855

Cyclicthys is a genus of fish in the porcupinefish family, Diodontidae. Species in the genus are often known as swelltoads.

Distinguishing features

Fish of the genus Cyclicthys have three-rooted, rigid spines (actually modified scales) distributed over their bodies, and beak-like jaws, used to crush their hard-shelled prey (crustaceans and molluscs).[1] They differ from members of the genus Diodon, which have moveable spines.

Defensive mechanisms

Like Tetraodontidae (blowfish) they have the ability to inflate themselves. Their inflated size combined with their spines make them extremely difficult to swallow. They may be poisonous, through the accumulation of tetrodotoxin or ciguatera.[1]

Species

There are currently 3 recognized species in this genus:[2]

ImageScientific nameCommon NameDistribution
Cyclichthys hardenbergi (de Beaufort, 1939)Hardenburg's burrfishWestern Pacific: southern New Guinea and tropical Australia east of Cape York
Cyclichthys orbicularis (Bloch, 1785)Birdbeak burrfishIndo-West Pacific region from Red Sea to the Philippines
Cyclichthys spilostylus (Leis & J. E. Randall, 1982)Spotbase burrfishRed Sea to South Africa and east to southern Japan, the Philippines, Australia and New Caledonia.

References

  1. 1 2 Lieske, E. & Myers, R.F. (2004): Coral reef guide; Red Sea London, HarperCollins ISBN 0-00-715986-2
  2. Matsuura, K. (2014): Taxonomy and systematics of tetraodontiform fishes: a review focusing primarily on progress in the period from 1980 to 2014. Ichthyological Research, 62 (1): 72-113.


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