dendrorhynchus dendrorhynchus dendrorhynchus is a gregarine genus with total 2 species. the genus was first described in 1920 by david keilin from the alimentary canal of dolichopodid larvae systenus. dendrorhynchus scientific classification (unranked): sar (unranked): alveolata phylum: apicomplexa class: conoidasida subclass: gregarinasina order: eugregarinorida family: dactylophoridae genus: dendrorhynchus type species dendrorhynchus systenikeilin, 1920 species dendrorhynchus systeni dendrorhynchus keilini homonyms dendrorhynchus is a senior homonym for genera of nemerteans (replaced with polydendrorhynchus) and pterosaurians (replaced with dendrorhynchoides).