Musculus impactus
Korona
Korona
Mussel, Nesting
Invertebrate
Mollusca
Bivalvia
Mytilidae
The shell is oval shaped and swollen with sculpture dividing the shell into three regions, two with strong ribs separated by one with no ribs. hen found in groups the byssal threads can intertwine to form a dense mat of threads which completely hide the animal.
Found under stones at low tide throughout New Zealand.
Filter feeder.
W
NZ Coastal Marine Invertebrates; Vol 1