Halgerda batangas
Halgerda batangas is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Discodorididae. It is found in the tropical western Pacific. This animal is one of a group of mainly white species of Halgerda with orange markings. It is characterized by a network of fine, solid, red-orange lines on the mantle. It has a white band around the mantle containing low rounded orange-capped tubercles. The mantle tubercles range in size from small rounded bumps to tall, prominent structures.

photo credits: Alexander R. Jenner, Steve Childs