longitudinalis linguae

noun

lon·​gi·​tu·​di·​na·​lis linguae ˌlän-jə-ˌt(y)üd-ə-ˈnā-ləs- 

: either of two bands of muscle comprising the intrinsic musculature of the tongue of which one is situated near the dorsal surface and one near the inferior surface of the tongue

called also longitudinalis