Sacoglossans

Part of speech: noun

Definitions

1. A group of small, often brightly colored sea slugs known for their unique ability to incorporate chloroplasts from algae into their own cells for photosynthesis; marine gastropod mollusks notable for this distinctive feeding strategy; members of a specialized clade within opisthobranch mollusks that exhibit kleptoplasty for energy
2. Marine mollusks characterized by their small size and vibrant hues, capable of sequestering algal chloroplasts within their tissues to perform photosynthesis; sacoglossans are a unique subset of sea slugs showing this rare form of symbiotic nutrition; these gastropods belong to a diverse group notable for their specialized herbivorous diet and cellular incorporation of chloroplasts
3. Small sea-dwelling gastropods distinguished by their ability to steal and maintain functioning chloroplasts from algae they consume for sustaining photosynthetic activity; these mollusks are part of a distinct group known for their specialized feeding mechanism and herbivorous lifestyle; sacoglossans represent a fascinating example of animal-plant interaction through kleptoplasty within marine environments

Etymology: "Sacoglossans" is the plural of "sacoglossan," and the singular is the more basic form to understand. The name is a modern scientific coinage built from Greek roots: "sakkos," a bag or sack, and "glōssa," tongue. The reference is to the animals' distinctive feeding apparatus, a radula (a toothed ribbon used for scraping food) that is shaped and used in ways that set this group apart from other sea slugs. Because the name describes a bag-like tongue, it is a fitting label for a group whose members are famous for a different kind of internal structure: they can keep chloroplasts stolen from the algae they eat and put them to work for photosynthesis. The Greek elements themselves are ancient, but the combined term was coined by zoologists to name a clade, not used by the Greeks.

Synonyms: sap-sucking sea slugs, sap-sucking mollusks