The Collaborative International Dictionary
skimback
Quillback \Quill"back`\, n. (Zo["o]l.) An American fresh-water fish ( Ictiobus cyprinus syn. Carpiodes cyprinus); -- called also carp sucker, sailfish, spearfish, and skimback.
Wiktionary
skimback
n. (context US English) A fish, the quillback.