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Freshwater drum (Pharyngeal teeth)

Aplodinotus grunniens

Description:

Pharyngeal "throat" teeth are located on the last gill arch at the posterior region of a fish's head. They are visible only upon lifing off the gill cover (operculum) and exposing the gills beneath. The arrangement and number of these teeth are specific for certain families and species of fish.

Habitat:

Joe Wheeler state park, Alabama

Notes:

Thanks Goody for the ID!

1 Species ID Suggestions

Aaron_G
Aaron_G 9 years ago
Freshwater drum
Aplodinotus grunniens Freshwater drum


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10 Comments

KarenL
KarenL 8 years ago

I agree Emma!

Hema
Hema 8 years ago

Nature never ceases to amaze!

KarenL
KarenL 9 years ago

It's cool isn't it! I always assumed the only teeth fish had were along their jaws like most other organisms!

CarolSnowMilne
CarolSnowMilne 9 years ago

It looks like fungi. I thought the same thing. HA!

KarenL
KarenL 9 years ago

Of course, now all I need to do is to work out how it ended up several 100 feet from the river - we saw around 15 herons close by so I'm guessing they might have something to do with it!

KarenL
KarenL 9 years ago

I would never have guessed this! I'm very embarrassed I put this in fungi!

Aaron_G
Aaron_G 9 years ago

I ran across one last year and I went through all sorts of channels trying to identify the thing. I have to admit that it's one of the more interesting biofacts I've dealt with.

KarenL
KarenL 9 years ago

Awesome!
Thanks Goody!

Aaron_G
Aaron_G 9 years ago

These are the pharyngeal teeth of the fish.

http://www.sciencebuzz.org/museum/object...

Aaron_G
Aaron_G 9 years ago

I know exactly what this is because I had to do some digging around to ID the same item!

KarenL
Spotted by
KarenL

Alabama, USA

Spotted on Feb 25, 2012
Submitted on Feb 25, 2012

Spotted for Mission

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