pinworm or threadworm or seatworm or enterobius vermicularis, vintage engraved

ancient animal antique art artwork black contaminant contaminated contamination drawing engraved engraving enterobiasis enterobius entomological entomology etching fauna human illustration infestation intestinal intestine invertebrate nematoda nematode old oxyuriasis oxyuridae parasite parasitic pathogen picture pin pinworm pseudocoelomate round roundworm seat seatworm strongyloides thread threadworm vector vermicularis vintage white worm zoological zoology