Oxyuris curvula of the horse, [380]
"  vermicularis, description of the, [227]

Oysters as bearers of fluke larvæ, [26]

Pachydermata, parasites of the, [393]

Palisade worms in relation to aneurism, [368]

Paramecium (Balantidium) coli of man, [282]

Paramecium, semiparasitic character of, [7]

Parasites from birds at the Zoological Gardens, [447]
"   in the Hunterian Museum, [427]
"   in grouse from the Earl of Cawdor’s estate, [439]
"   of savages, little known respecting, [27]
"   popular delusions concerning, [1]
"   their etiological significance not fully recognised, [488]

Partridge, entozoa of the, [440]

Peccaries (Dicotyles), parasites of the, [404]

Pediculidæ, a family of parasitic insects, [6]