ðə spəsˈɪfɪk nˈeɪm ʌv pˈiː. sˈædʒɪɾə ɪz ðə lˈætɪn wˈɜːd sˈædʒɪɾə ˈæɹoʊ, ɪn dᵻɹˈɛkt ɹˈɛfɹəns tə ðɪ ˈæɹoʊlˈaɪk ʃˈeɪp.
The specific name of P. sagitta is the Latin word sagitta (arrow), in direct reference to the arrow-like shape.