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Ozark minnow
The Ozark minnow (''Notropis nubilus'') is a species of ray-finned fish in the genus ''Notropis''.
== Appearance ==
The Ozark minnow is a small fish that averages about 2 ¼ to 2 ¾ inches in length with its maximum length being about 3 inches. They have dark yellow or olive coloration along their back and upper sides. Their lower sides are silvery with a stripe running down their midline up past their eye. When in the water, golden spots can be seen over the stripe along the midline.〔http://mdc.mo.gov/discover-nature/field-guide/ozark-minnow Missouri Department of Conservation〕
The edges of their scales are dark in color as well.〔http://animaldiversity.ummz.umich.edu/accounts/Notropis_nubilus/ Animal Diversity Web〕 They also have flat snouts and big eyes, and are bilaterally symmetrical.〔http://www.biokids.umich.edu/critters/Notropis_nubilus/ BioKids〕 Similar to the Shiner species, the Ozark minnow has a terminal, oblique mouth. It also lacks pigment on the top and base of its mouth. A forked tail and single fin on its dorsal side allow the Ozark minnow to maneuver quickly through the water.〔http://www.seagrant.wisc.edu/home/Default.aspx?tabid=605&FishID=97 University of Wisconsin Sea Grant Institute〕 The Ozark minnow can easily be distinguished from other fish because of the striking black line which stretches from its head to tail. Although an adult Ozark minnow does not extend more than 3.0 inches, it possesses a gut that is approximately double the fish’s average length. The gut is coiled neatly within the Ozark minnow.〔http://dnr.wi.gov/topic/endangeredresources/animals.asp?mode=detail&speccode=afcjb28680 Wisconsin Department of Natural Resources〕
These physical descriptions of the Ozark minnow are true for both the males and females in a population meaning that they do not seem to display any sexual dimorphism. In other words, they do not have very different physical traits that are special to the male or female.〔http://animaldiversity.ummz.umich.edu/accounts/Notropis_nubilus/ Animal Diversity Web〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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