Japanese crossword «Fish»

Grandad and his grandson Billy are searching in the for fishing worms to use as bait. They are coming across many different insects but nothing suitable to use for bait until little Billy proudly holds up a long dangling insect.
Little Billy exclaims "I found some bait grandad".
Grandad responds "sorry Billy we can't use that. It is not an earthworm."
Little Billy replies "well what planet does it come from Grandad."