Assertion: mollusk's tentacle | /r/HasProperty | the captacula
Facets:
Source sentences:
text: At the anterior (front), larger end of the shell is an extensible foot adapted for digging and an imperfectly developed head with slender tentacles, the captacula, that serve as sensory and food-catching organs.
text: Threadlike cilia-bearing tentacles (known as captacula) probe for food, such as forams, detritus, and even the occasional buried bivalve, and bring it to the mouth where a large radula grinds it up.