—see also Phonation
Spathius, [561]
Species, number of—see Number
Spencer, Herbert, on caste and sex, [500]
Spermatheca, [139], [228], [499]
Spermatophores, [39]
Spermatozoa, [140]
Sphaeropsocus kunowii, [397]
Sphaerotheriidae, [43]
Sphaerotherium, [43]