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  Family Gasterosteidae  

Family Acipenseridae--Sturgeon Family

Sturgeons have a skeleton made of cartilage, even though they are considered bony fishes. The mouth is located on the bottom side of the shovel-shaped head. The tail fin is deeply forked. Four large barbels are located on the bottom of the snout.

lake sturgeon -- Acipenser fulvescens [state endangered]
This bottom-feeder of lakes and large rivers uses its protrusible mouth to suck up materials such as snails, clams, insect larvae and crayfish. Spawning occurs in late spring. Females do not spawn every year and do not reproduce at all until they are 20 years old. Growth of individuals is very slow, but a length of nine feet may be attained.

pallid sturgeon--Scaphirhynchus albus [federally endangered]
shovelnose sturgeon--Scaphirhynchus platorynchus

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