type species

/T AY1 P S P IY1 SH IY0 Z/
noun
  1. 1

    A species which has been designated as typical of a genus, and is chosen as the species according to which the genus is named.

    โ€œThe type species [of genus Esox] is E. lucius, the northern pike. The species of this genus are known as the pike. (Wikipedia article on Esox)โ€

Source: https://en.wiktionary.org/wiki/type%20species