penis fish

noun4

1. •
   Any of certain species of Urechis worm.
2. •
   Urechis caupo, a North American spoon worm.
3. •
   Urechis unicinctus, an East Asian spoon worm.
4. •
   A candiru, a parasitic catfish of the genus Vandellia, alleged to be able to enter the human urethra.