goatfish vs haarder

goatfish

noun
  • Any of many brightly coloured fishes, of the family Mullidae, having two barbels on the chin. 

haarder

noun
  • Planiliza haematocheilus, the redlip mullet, a mugilid fish. 

How often have the words goatfish and haarder occurred in a corpus of books? (source: Google Ngram Viewer )