👉 Stenostomids are a group of marine crustaceans that belong to the family Sestonidae and include the following species:
1.
Larval stage (stenoscaster)
: These are the first stage of the larva, which is similar to a snail but smaller, and can be found in the mud or on the sea floor.
2.
Adult stage (stenostomate)
: The second stage of the larva, where the