"Diangus Gratianopolitanus" is a tricky name to spell due to its complex structure and origin. The pronunciation of this name can be better explained through IPA phonetic transcription as "dɪæŋɡəs ɡrætɪænɔpɔlɪtænʊs." The first two syllables are pronounced with a short "i" sound followed by the "æ" sound. The stressed syllables are pronounced with a long "a" sound. The last syllables end with the "nʊs" sound. Despite its difficulty in spelling, this name holds significant value in the academic and scientific community.