The priapulids are hermaphroditic, and their male and female organs, which are closely associated with the excretory protonephridia, consist of a pair of branching tufts, each of which opens to the exterior on one side of the anus.
They comprise a pair of branching tufts, each of which opens to the exterior on one side of the anus. The priapulids are hermaphroditic Their male and female organs are closely associated with the excretory protonephridia.
The priapulids are hermaphroditic Their male and female organs are closely associated with the excretory protonephridia. They comprise a pair of branching tufts, each of which opens to the exterior on one side of the anus.
The priapulids are hermaphroditic Their male and female organs are closely associated with the excretory protonephridia. They comprise a pair of branching tufts, each of which opens to the exterior on one side of the anus.