Sentence:  "Asplanchna priodonta" (Asplanchnidae) is a planktonic predator with <WSD>incudate</WSD> trophi, showing a wide trophic spectrum, feeding on rotifers, protists, and various unicellular algae (Jose de Paggi, 2002). 
Meaning of the word marked with <WSD> tags:  That functions by prehension; "used as a classification".