Scalops canadensis, nematode found in, [297]

Schistosoma, considered as a synonym of Bilharzia, [39]

Sclerostoma and Anchylostoma as synonyms, [211]

Sclerostoma dentatum of the hog, [412]
"   pinguicola of Verrill, the so-called, [409]
"   syngamus in birds, [443]

Seals and walruses, parasites of, [314]

Sheep, hydatids from cattle and, [139]
"  of New South Wales, fatal epizoöty in, [347]
"  parasitic bronchitis affecting, [335]
"  whip-worms occasioning “scour” in, [349]

Shrews, parasites known to infest, [296]

Simondsia paradoxa, description of, [406]

Simulium reptans or the creeping gnat, [273]