Trivirostra hordacea is a species of small sea snail, a marine gastropod mollusk in the family Triviidae, the false cowries or trivias.

[2] The length of the shell attains 6 mm.

They are white in colour and are characterised by their prominent ribs.

This marine species occurs off the Philippines, Hawaii, Fiji, Okinawa, Japan, Nerw South Wales (Australia), Zanzibar.