Meaning of studfish

stud•fish

Pronunciation: (stud'fish"), [key]
— pl. -fish, -fish•es.
  1. either of two killifishes marked with orange spots, Fundulus catenatusof the Tennessee and Cumberland rivers and Ozark Mountains region, or F. stelliferof the Alabama River.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.