Note 6 — Chapter IX
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The Psylli we are told by Pliny, on the authority of Agatharcides, were so called from their King Psyllus, whose tomb is said to have been somewhere in the Greater Syrtis. They were remarkable for their power of charming serpents; and possessed some innate quality of body which was considered to be destructive to these reptiles; so much so that the very smell of them was supposed to lull a serpent asleep. They had a singular custom of exposing their children to the most venomous kinds of serpents, in order to convince themselves of their legitimacy. If the serpents, on whom the trial was made, did not fly from the children exposed to them, it was concluded to be a proof of decided illegitimacy, since the animals, they imagined, could not avoid doing so, had the infants been really descended from this gifted tribe.
It has been observed by other writers, that the Psylli merely cured the bite of serpents by sucking the poison from the wound, and that they were therefore more indebted for their reputation to their courage, than to any peculiar qualification of nature.