Yes, JAVELINAS is a Scrabble word!

Letter values in Scrabble US: J 8, A 1, V 4, E 1, L 1, I 1, N 1, A 1, S 1.

Is it a valid word?

JAVELINAS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

dark grey peccary with an indistinct white collar; of semi desert areas of Mexico and southwestern United States

Also: collared peccary, tayassu angulatus, tayassu tajacu, peccari angulatus.