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Lampreys differ from hagfishes by having a notochord that is surrounded by a tube of cartilage.
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∙ 13y ago
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The skeletons of lampreys and hagfishes are made of?
cartilage
Lampreys and hagfishes are the only remaining?
agnathans
Are Lampreys and hagfishes are examples of what kind of fishes members of the class Agnatha?
jawless fishes
Do pigeons have a lobed liver?
Yes pigeons have spleens. All vertebrates have spleens except lampreys and hagfishes.
What vertebrates don't have jaws?
Lampreys and hagfishes are the only jawless vertebrates to survive today. They both have a round mouth and for this reason are often referred to as cyclostomes.
How are jawless fish different in aditional ways form other fish?
They also do not have pairs of fins like most fish. But the most remarkable thing about these fish is that they do not have jaws! Instead, the mouths of these fishes have structures for scraping, stabbing. Hagfishes and lampreys are the only living kinds of jawless fishes.
What does a jawless fish eat?
There are two different types of jawless fish basically, the hagfishes and the lampreys. The larval stages of thse organisms are filter feeders, and eat a variety of plankton. The adult lamprey feeds on fish blood, as they are parasites. The adult hagfish feeds on dead and decaying animal material such as fish or marine mammal carcasses.
What kinds of lamprey are there?
I found 3 different kinds:Petromyzon marinus - Sea LampreyBrook lampreys (Lampetra planeri)River lampreys (Lampetra fluvitilis)
How do hagfishes reproduce?
by pooing
What would fish look like if they belong to class Agnatha?
n. 1. a class of eel-shaped chordates with a cartilaginous skeleton lacking jaws, scales, and pelvic fins. Among these are the lampreys and hagfishes. There are some extinct forms.
When was Surfeit of Lampreys created?
Surfeit of Lampreys was created in 1941.
What is the basic groups of fish?
There are three general groups. The first group is jawless fish. They only contain lampreys and hagfishes. The second group is cartilaginous fish, which includes sharks, rays, and their relatives. The last group is bony fish, and they contain every other kind of fish- tuna, clownfish, anglerfish, whatever.
