Symphysodon, [672]

Synagris, [664]

Synagrops, [659]

Synancia, [695];

S. verrucosa, poison-glands, [177]

Synaphobranchidae, [603]

Synaphobranchus, [603]

Synapticula, [13], [12], [122]

Synaptura, [687]

Synascidiae, [80], [35]