colloblast
Quick Summary
Colloblasts are specialized adhesive cells found exclusively in ctenophores, also known as comb jellies. These marine invertebrates use colloblasts to capture prey.12
Ctenophores are named for the comb-like rows of cilia that cover their bodies, which they use for locomotion. While most ctenophores are small, some can grow over a meter long. They are found in all ocean regions and are carnivorous, feeding on small planktonic animals. Colloblasts produce a sticky secretion that adheres to prey upon contact. These cells are unique to ctenophores and distinguish them from cnidarians, which have stinging cells called nematocysts.12
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
