The only other American pitvipers known to lay eggs are the four species of bushmaster Lachesis.
Lachesis (mythology), one of the Moirai the personification of destiny in Greek mythology
Death's-head Hawkmoth, refers to any one of the three species (A. atropos, A. styx and A. lachesis) of moth in the genus Acherontia
The following rules are based on the 1811 translation of Lachesis Lapponica into English by James Edward Smith.
Clotho, the youngest, spins the threads from the substance of Void; Lachesis, the middle aspect, measures the threads and Atropos, the oldest, cuts the thread of each individual human.