aquatic vertebrate

Other forms: aquatic vertebrates

Definitions of aquatic vertebrate

1. noun

   animal living wholly or chiefly in or on water
   types:

   agnathan, jawless fish, jawless vertebrate

   eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms

   placoderm

   fish-like vertebrate with bony plates on head and upper body; dominant in seas and rivers during the Devonian; considered the earliest vertebrate with jaws

   fish

   any of various mostly cold-blooded aquatic vertebrates usually having scales and breathing through gills

   bottom-dweller, bottom-feeder

   a fish that lives and feeds on the bottom of a body of water

   bottom lurkers

   a fish that lurks on the bottom of a body of water

   ostracoderm

   extinct fish-like jawless vertebrate having a heavily armored body; of the Paleozoic

   heterostracan

   extinct jawless fish with the anterior part of the body covered with bony plates; of the Silurian and Devonian

   cephalaspid, osteostracan

   extinct jawless fish of the Devonian with armored head

   anaspid

   extinct small freshwater jawless fish usually having a heterocercal tail and an armored head; of the Silurian and Devonian

   conodont

   small (2 inches long) extinct eellike fish with a finned tail and a notochord and having cone-shaped teeth containing cellular bone; late Cambrian to late Triassic; possible predecessor of the cyclostomes

   cyclostome

   primitive aquatic vertebrate

   lamper eel, lamprey, lamprey eel

   primitive eellike freshwater or anadromous cyclostome having round sucking mouth with a rasping tongue

   hag, hagfish, slime eels

   eellike cyclostome having a tongue with horny teeth in a round mouth surrounded by eight tentacles; feeds on dead or trapped fishes by boring into their bodies

   cartilaginous fish, chondrichthian

   fishes in which the skeleton may be calcified but not ossified

   fingerling

   a young or small fish

   game fish, sport fish

   any fish providing sport for the angler

   food fish

   any fish used for food by human beings

   rough fish

   any fish useless for food or sport or even as bait

   young fish

   a fish that is young

   mouthbreeder

   any of various fishes that carry their eggs and their young in their mouths

   spawner

   a female fish at spawning time

   northern snakehead

   a voracious freshwater fish that is native to northeastern China; can use fin to walk and can survive out of water for three days; a threat to American populations of fish

   bony fish

   any fish of the class Osteichthyes

   A. testudineus, Anabas testudineus, climbing perch

   a small perch of India whose gills are modified to allow it to breathe air; has spiny pectoral fins that enable it to travel on land

   type of:

   craniate, vertebrate

   animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium