scalaris (Coronella austriaca, var.), [199]

Scales, [14]

schwoederi (Coluber leopardinus, var.), [193]

scutatus (Tropidonotus natrix, var.), [155]

semimaculata (Contia modesta, var.), [207]

Sense organs, [73]

seoanei (Vipera berus, var.), [235]

Serotherapy, [66], [134]

Serum treatment, [67]

Shedding of the epidermis, [20]