- Ixodes ricinus; male, ventral aspect
- Larva of Anopheles
- Larva of Fannia scalaris
- Larva of Simulium
- Left hand stigmata of the larvæ of muscoidea
- Left spiracle of nymph of Argas persicus
- Life cycle of the malarial parasite
- Linguatula. (a) larva; (enlarged). (b) adult; (natural size)
- Lucilia cæsar
- Mandible of Scolopendra cingulata showing venom gland
- Muscina stabulan
- Notœdres cati, male and female
- Otiobius (Ornithodoros) megnini, head of nymph
- Otiobius (Ornithodoros) megnini, male. (a) dorsal, (b) ventral aspect
- Pediculoides ventricosus, female
- Pediculus showing the blind sac (b) containing the mouth parts (a) beneath the alimentary canal (p)
- Piophila casei
- Poison apparatus of a honey bee
- Rasahus biguttatus
- Reduvius (Opsicœtus) personatus
- Salivary glands of Notonecta maculata
- Sarcoptes scabiei, female
- Sarcoptes scabiei, male
- Sarcoptes scabiei. Diagrammatic representation of the course in the skin of man
- Section through a venom gland of Latrodectus 13-guttatus showing the peritoneal, muscular and epithelial layers
- Sepsis violacea; puparium and adult
- Simulium venustum
- Electric Eel