Synchaeta, [200], [204] f., [224], [226]

Synchaetidae, [223], [224]

Syncoelidium, [33], [42]

Syncytium, [125]

Syngamus trachealis, [130], [142], [144], [161], [163], [164]

Syrinx, [411]

Taenia, [74], [78], [79], [91];

life-histories of species of, [83];

table of species, [89];

T. (Cysticercus) acanthotrias, [80];