A species of venomous sea snake found in the waters around Japan, especially near Okinawa. Scientific name: Laticauda semifasciata.
The Erabu black-banded sea krait is a venomous snake found in the seas around Okinawa.
Katakana spelling is common for this animal name; usually written in kana.
Rarely used kanji form.
The name comes from 永良部 (Erabu, referring to Okinoerabu Island) + 海蛇 (sea snake). The exact derivation is uncertain, but it is named after the region where it is commonly found.