LAMPREY
Petromyzon marinus
©Ángel FebreroLampreys (sometimes also called lamprey eels) are a family of jawless fish, whose adults are characterized by a toothed, funnel-like sucking mouth. Translated from an admixture of Latin and Greek, lamprey means stone lickers (lambere: to lick, and petra: stone). While lampreys are well-known for those species which bore into the flesh of other fish to suck their blood, most species of lamprey are non-parasitic and never feed on other fish. In zoology, lampreys are sometimes not considered to be true fish because of their distinctive morphology and physiology.
Fact Source: http://en.wikipedia.org/wiki/Lamprey
Other photos you may like:
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beneaththeseas:Boca de Lamprea by Ángel Febrero on Flickr.
* Lamprey Mouth.