spˈiːsiːz ʌvðə pˈiː. ɡˈɪbaɪsˌɛps ɡɹˈuːp spˈiːsiːz fˈɔːɹmɚli klˈæsᵻfˌaɪd ɪnðə dʒˈɛnəs ɡlˈɪptoʊpɹˌɪtʃθiz ɑːɹ ˈiːzili ɹˈɛkəɡnˌaɪzd baɪ ɐ lˈɑːɹdʒ kɹˈɛst əbˌʌv ðə bˈæk ʌv ðɛɹ skˈʌl.
Species of the P. gibbiceps group (species formerly classified in the genus Glyptoperichthys) are easily recognized by a large crest above the back of their skull.