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31 Cards in this Set
- Front
- Back
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class of hagfishes
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myxini
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lampreys
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class ceptaspidomorphi
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anadromous
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swim upstream to spawn
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amocete
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lamprey larvae
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petamorphosis
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reproductive larva
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pelngic
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open ocean fish
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diphycercal
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lungfish
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placoid scales
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tough sand-paperish in sharks
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neuromasts
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detect chemicals in a lateral line
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ampulae of lorenzini
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electroreceptors on the sharks head
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elasmobranches
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retain nitrogenous compounds to raise blood solute concentration
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TMAO
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make urea less poisoneous
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sarcoptergii
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class of lungfishes and coelocanths
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actinoetergii`
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class of modern bony fishes
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cycloid and ctenoid scales
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teleost scales greater flexibility
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w shaped muscle bands to ropel fish
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myomeres
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tube that connects swim bladder to esophagus
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pneumatic duct
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network of capillaries by swim bladder
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rete mirable
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fresh fish are
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hyperosmotic regulators
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opisthonephric kidney
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pumps pumps out excess H2O
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marine bony fishes
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hypoosmotic
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dioecious fishes
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external fertilization and development- most common
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otoliths
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rings of scales that determine age
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agnathan
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jawless fishes
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hagfish
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large yolky eggs
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male lampreys use these to make nests
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oral discs
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fusifrom
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torpedo shaped body
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benthial life
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bottom dwelling
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all lampreys
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ascend freshwater streasm to breed
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hagfish are in osmotic equilibrium
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with the ocean
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in front of the mouth is the point o sharks called the
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rostrum
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