Acrochordinæ, [5]

Adder, [230]

Æsculapian Snake, [187]

æsculapii (Coluber), [187]

Aglypha, [4], [151]

Ailurophis vivax, [217]

Albinism, [39]

Aldrovandi’s Snake, [182]

Altitudinal range, [118], [123]

Amblycephalidæ, [5]