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Tippecanoe darter
The Tippecanoe darter (''Etheostoma tippecanoe'') is a species of darter endemic to the eastern United States.
==Description==
One of the smallest darters, ''E. tippecanoe'' never reaches lengths over 2.0 in; 1.3 in is the common adult size. The body and fins of the male is dusky with scattered spots and vertical banding. Blue-black bars on the sides are darkest at the rear. It has 40-65 lateral scales. A breeding male will develop a bright orange throat, belly, spots at the caudal fin base and fins margins. The female also has dark vertical bars on its sides that are most visible near the tail, but they are usually less distinct than those on a male. The female has two yellow spots at the caudal fin base. All of their fins are clear with many dark spots scattered across them, often forming rows.
On both sexes, the belly will bear very few scales. A distinguishing characteristic is the two light spots at the base of the caudal fin, creating an hourglass shape. The circular banding around the head is also distinctive. The center portion of their pelvic fins is a dark blue-black color.
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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