dendrocometes dendrocometes dendrocometes is a genus of suctorian infusoria, characterized by the repeatedly branched attached body; each of the lobes of the body gives off a few retractile tentacles. it is parasitic on the gills of the so-called freshwater shrimp gammarus pulex. dendrocometes scientific classification domain: eukaryota clade: diaphoretickes clade: sar clade: alveolata phylum: ciliophora class: phyllopharyngea family: dendrocometidae genus: dendrocometesf. stein