heres a handy link
Full Version: A Quick Course in Ichthyology
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I was looking up some things and came across this, I found it very educational and informative
heres a handy link
heres a handy link
Extremely simplistic and missing several important catagorys of fish,
Interesting none the less.
Seems to be a more Marine based, and totaly lacking anything to
do with freshwater.
Interesting none the less.
Seems to be a more Marine based, and totaly lacking anything to
do with freshwater.
so what important categorys of fish is it missing?
Missing many of the "primitive" bony fish (sturgeon, paddlefish, gar, bowfin, polypterus). Essentially doesn't acknowledge Holostei or Chondrostei at all.
Some good info, though, but I do have a problem with this:
Some good info, though, but I do have a problem with this:
| QUOTE |
| These fish have a cartilaginous skeleton, but their ancestors were bony animals. |
If they mean placoderms they are incorrect. They had bony plates on the outside of there bodies which were precursors (in theory) to bony skeletons for the bony fish. But they had no bony skeletons and neither do the Chondrichthyes.
"Half-way" information does have the potential to be dangerous because someone can read that page and think they know more than they do.
Not trying to be negative, just be aware that it is far from a replacement for a good ichthyology text or class. It's just a page with some good (but not thorough or completely accurate) information.
Just another example:
| QUOTE |
| Flyingfishes -Cyprinodontiformes 845 spp |
Whoa. Exocoetidae is a family within the order Cyprinodontiformes but that order has a LOT more members. It's interesting which orders were selected. I will say that they described 'counter-current flow' very well.
If you want a good page to look at fish diversity with good taxonomic info, check out:
http://oregonstate.edu/instruct/fw316/mark...fishimages.html
(I prefer to offer a solution if I'm going to be critical! )
Here's a more typical cyprinodontiformes member (a killifish)
Speaking of that diversity page, this has to be one of the coolest things on it, and it's not a ray!
Whow what is that if not a ray?
Oh and thanks for the link, I'm gunna read it in the morning
Oh and thanks for the link, I'm gunna read it in the morning
| QUOTE (acestro @ Aug 29 2003, 07:13 PM) | ||
Just another example:
Whoa. Exocoetidae is a family within the order Cyprinodontiformes but that order has a LOT more members. It's interesting which orders were selected. I will say that they described 'counter-current flow' very well. If you want a good page to look at fish diversity with good taxonomic info, check out: http://oregonstate.edu/instruct/fw316/mark...fishimages.html (I prefer to offer a solution if I'm going to be critical! ) Here's a more typical cyprinodontiformes member (a killifish) |
Funny that was my main gripe, I deleated it, substituting it for focuses on marine fish, Then I'm also way to tired to deal with Cyprinodont Taxonomy right now.
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