1. His consular colleague was M . Servilius Pulex Geminus. 2. Women like Pulex are good risks. 3. The most well-known invertebrate may be a species of midge ( " Pulex irritans " in Europe. 4. "D . pulex " genome has undergone extensive gene duplication followed by rapid paralog divergence and tandem rearrangement. 5. Nonetheless, Pulex irritans, the human flea, is a much less efficient vector of plague than the rat flea Xenopsylla cheopis. 6. As inferred from EST analysis, the average intron size found in " D . pulex " genes is 170 bp. 7. Other ectoparasites include biting lice, sucking lice and the fleas " Pulex irritans " and " Ctenocephalides canis ". 8. He described filarial worm " Dipetalonema reconditum ", and demonstrated the parasite life cycle in fleas, " Pulex irritans ". 9. ""'Gammarus pulex " "'is a species of amphipod crustacean found in fresh water across much of Europe. 10. "Pulex irritans " is a holometabolous insect with a four-part lifecycle consisting of eggs, larvae, pupae, and adults.