lancefish vs lant

lancefish

noun
  • A slender marine fish of the genus Ammodytes, especially Ammodytes tobianus, found in British waters. 

lant

noun
  • Any of several species of slender marine fishes of the genus Ammodytes, including the common European species (Ammodytes tobianus) and the American species (Ammodytes americanus). 

  • Aged urine. 

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