Tanglenetted off Sogod at 150 m. Cebu. Philippines. TL 300 mm.
The 'marriage trap': as the structure of the sponge grows, a juvenile male and female shrimp get enclosed in the structure and spend the rest of their life 'entrapped' in the structure of the sponge. The fine mesh allows only for nutrients to go in, and eggs to disperse.
Smaller sizes and other shapes and qualities available for wholesale. Mail for info and prices.