Larvæ of flukes, Pagenstecher’s researches on, [452]
Leeches considered as human parasites, [258]
" of India, Ceylon, Japan, and Java, [258]
" semiparasitic character of, [5]
Lemurs, cœnuri or polycephalous hydatids in, [290]
Leporines, acarine parasites of, [319]
Leptodera (Anguillula) stercoralis, description of, [234]
" intestinalis, description of the, [235]
Leptus autumnalis a human parasite, [268]
Lernæan parasites found on whales, [428]
Lernæidæ, a family of crustacean parasites, [6]
Leuciscus, the bleak, a possible source of tapeworm, [108]
Leucochloridium, experiments by Zeller with, [435]