by name:
ABOMA, [454];
acanthophis, [172];
adder, [49], [172], [392], [410], [424], [471];
aglyphodontes, [347];
amphisbœna, [44], [91], [174], [189], [190], [353];
[anaconda], [112], [210], [228], [232], [441], [454], et seq.;
ancistrodon, [11], [495], [571], [572];
anguis 48, [54], [89], [93], [171], [183], [187], [279], [346], [353], [410], [452], et seq., [471];
anholodontes, [347];