Skunk, tapeworm infesting the, [298]

Sloths, nematode worms found in, [322]

Snake-birds, parasites in the cranium of, [446]

Snake, larval nematode from the heart of a, [455]
"  worms from an Egyptian hooded, [456]

Solidungula, parasites of the, [356]

Solpugidæ, a family of Arachnida, [5]

Soorti and masuri parasites of elephants, [395]

Sphærularia bombi, Sir J. Lubbock’s description of, [481]
"   found in various bees, [480]
"   Schneider’s account of the development of, [482]

Spirilla, found in the blood of fever patients, [277]

Spiroptera helicina in the feet of birds, [440]
"  megastoma of the horse, [380]
"  sanguinolenta, Lewis’s remarks on, [303]
"  sexalata infesting Dicotyles, [407]
"  strongylina of the hog, [406]