Not much is known about the feeding and food of Ba-thynellacea. Plant debris (detritus), nematodes, and turbellar-ian worms have been observed from the guts of various specimens. Among Parabathynellidae, in particular, there is great variation in types of mouthparts, indicating specialization on different types of food. Most Bathynellacea may be omnivorous, but many are certainly specialized, feeding on detritus, protozoans, and/or bacteria. One species has mouthparts with setae suited for scraping off material from sand grains.
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