Sharks, Trematodes of, [62], [72];
Cestodes of, [78]
Sheep, parasites of, [67], [81], [82], [83]
Sheldon, Miss, on Nemertinea, [99] f.
Shell-gland, of Leptoplana, [8], [9], [14], [16];
of Polyclads, [28];
of Trematodes, [59];
of Cestodes, [86]
Shield, cuticular, of Polychaeta, [259];
of Sternaspis, [335];