Allurus, [351], [366], [370], [389];

cocoons, [365]

Alma, [352] f., [387]

Alternation of generations, [66], [81], [281]

Amathia, [481], [518], [532]

Ammocharidae, [258], [325]

Ammotrypane, [273], [331];

intestine, [271]

Ampharete, [330]

Ampharetidae, [258], [330]