Memoir 38 Puate XCII 
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ix 
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TYPES OF ANAL GILLS IN GENUS TIPULA, VENTRAL ASPECT 
506, Tipula oropezoides; 507, T. nobilis; 508, T. caloptera; 509, T'. dejecta; 510, T. usitata; 
511, T. ignobilis; 512, T. iroquois (supposition) 
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