The starfish shrimp is a species of shrimp that lives as a symbiont with starfishes.Periclimenes soror is a species of little shrimp
with a truncated rostris, and showing a wide variety of coats, but
often with a distinctive white stripe or white dots pattern on the back.
The rest of the body varies with the host starfish: it is often “a deep
purple red” when living on Culcita, Protoreaster or Pentaceraster, but red with a white dorsal stripe when living on Acanthaster, and can also be transparent. Adults reach up to 15 millimetres long.This species has a wide distribution across the Indo-Pacific and in the Gulf of Panama.
Mexichromis multituberculata is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Chromodorididae. This animal was initially found in the Seto Inland Sea and Kii Channel, Japan, and later near Hainan Island and Hong Kong in China, and has been photographed in Indonesia, Malaysia, Papua New Guinea, Sulawesi, Egypt, Thailand. This species has purple spots around the edge of the mantle. The mantle also has scattered purple-tipped tubercules.
