Taxon Description (Wikipedia)
Jassa falcata, commonly known as
scud, is a tube-dwelling amphipod in the genus
Jassa.
Jassa falcata is one of the thousands of species of amphipod. Like lobsters, crabs and shrimps, amphipods are crustaceans in the class Malacostraca.
Jassa falcata constructs tubes of debris. It is a fouling organism, growing on the bottoms of ships and slowing them down.
J. falcata forms dense mats or nests. The male and the female live in different tubes.
J. falcata feeds generally on hydroid growth on the bottom of rafts and ships. It is generally a suspension feeder normally found on sediment areas.
Amphipods have two pairs of antennae. In
J. falcata the first antennae have two-segmented flagella and are shorter and more slender...
full article at Wikipedia
