megane-iruka means "Spectacled Porpoise" in English.

megane-iruka is normally written with katakana, as メガネイルカ.
megane-iruka written with hiragana is めがねいるか.
megane-iruka written with kanji is 眼鏡海豚.
These are jouyou kanji 常用漢字, taught in junior high, chuugakkou 中学校.
Romaji me ga ne i ru ka
Kanji 海豚
Meaning Glasses Dolphin
School Level 小5 小4 小2,

Orthography Notes

  • iruka is a jukujikun 熟字訓 reading for 海豚 in this word. That is: those kanji are only read that way when they come together like that.

Further Reading