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35 Cards in this Set

  • Front
  • Back
______ of pectoral girdles connected dorsally over vertebral column or fused
with synarcual.
Suprascapulae
Torpedo Ray order
Order Torpediniformes
Two Torpediniformes genera
Torpedo and Hypnos (monotypic)
Electric Rays?
torpediniforms
Skates?
Rajiforms
Cells that generate electric current in electric rays
electrocytes
Electricity is produced in what way?
- Same general principles used to generate nerve impulse and muscle contraction.

- Ionic conc. gradients maintained by the Na+/K+/ATPase pump and selective permeability
Sawfishes order
Order Pristiformes
Skates and guitarfishes order
Order Rajidae
bowmouth guitarfish family
Rhinidae
wedgefish
Rhynchobatidae
guitarfish
Rhinobatidae
skate
Rajidae
rays order
Order Myliobatiformes
American round stingrays
Urotrygonidae
whiptail stingray
Dasyatidae
butterfly ray
Gymnuridae
eagle, cownose, and devil (manta) rays
Myliobatidae
eagle ray subfamily
Myliobatinae
cownose ray subfamily
Rhinoterinae
manta subfamily
Mobulinae
enzymes of ray poison
5-nucleotidase, phosphodiesterase. Necrosis of tissues
Neurotransmitters of ray poison
serotonin: causing smooth uscle contraction; primary cause of intense pain
Components of poison are ____
proteins; can by denatured by high heat and meat tenderizer!
Jaw suspension of holocephalans
holostylic
jaw suspension of batoids
euhyostylic
male holocephalans have cephalic clasping organ called
tetaculum
holocephalan order
Order Chimaeriformes
plownose chimaeras superfamily
callorhinchoidea
plownose chimaeras family
callorhinchidae
plownose chimaera genus
Callorhincus
longnose chimaera
Rhinochimaeridae
shortnose chimaera
Chimaeridae
holocephalin in sink during class?
Hydrolagus
holocephalan encountered by humans often
Callorhinchus