You searched for:
“tentaculocysts”
One of the vesicular (small sac, especially one containing fluid) or cystic auditory (hearing) organs of a hydrozoan (water animal): The tentaculocysts are modified tentacles that act as bodily parts for hearing and often have eye-spots on them; so, tentaculocysts are sometimes also a combination of visual and auditory organs in the form of modified tentacles.
This entry is located in the following unit:
tentacu-, tentac-
(page 2)