* Elongated, capable of true intromission into the female cloaca.
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* Elongated, capable of true intromission into the female [[The_Avian_Vent_and_Cloaca_-_Anatomy_%26_Physiology#The_Cloaca|cloaca]].
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* Distal end lies enclosed in a cavity on the floor of the cloaca and becomes engorged with lymphatic fluid.
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* Distal end lies enclosed in a cavity on the floor of the [[The_Avian_Vent_and_Cloaca_-_Anatomy_%26_Physiology#The_Cloaca|cloaca]] and becomes engorged with lymphatic fluid.
** Anseriformes have a curved, fibrous phallus that conveys semen via a spiral groove.
** Anseriformes have a curved, fibrous phallus that conveys semen via a spiral groove.