Commensal Sponge Shrimp - Thaumastocaris streptopus

Small shrimp, translucent in colour, usually only found among sponges, particularly sponge tubes. They lives inside the sponge tubes, likely in pairs.

It is usually very difficult to take good pictures of them during day time as they are likely to hide deep inside the sponge tubes. This picture was taken using a strong light to shine through the sponge as it is also very difficult to get lighting on the Shrimp through the small opening of the sponge tube.