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West African lungfish
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West African lungfish : ウィキペディア英語版
West African lungfish

The West African lungfish (''Protopterus annectens''), also known as the Tana lungfish, is a species of African lungfish.〔 It is found in a wide range of freshwater habitats in West and Middle Africa, as well as the northern half of Southern Africa.〔〔
==Description==
''P. annectens'' has a prominent snout and small eyes. Its body is long and eel-like, some 9–15 times the length of the head. It has two pairs of long, filamentous fins. The pectoral fins have a basal fringe and are about three times the head length, while its pelvic fins are about twice the head length. In general, three external gills are inserted posterior to the gill slits and above the pectoral fins.
It has cycloid scales embedded in the skin. About 40–50 scales occur between the operculum and the anus, and 36–40 around the body before the origin of the dorsal fin. It has 34–37 pairs of ribs. The dorsal side is olive or brown in color and the ventral side is lighter, with great blackish or brownish spots on the body and fins except on its belly.〔(EOL.org )〕 They reach a length of about in the wild .〔(Primitivefishes.com (Retrieved May 13, 2010.) )〕

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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