Male Reproductive Organ - Lachesis rhombeata (now Lachesis muta rhombeata)

Like other Squamates (snakes and lizards), the male Atlantic forest bushmaster (Lachesis muta rhombeata) possesses a reproductive organ known as the hemipene, or hemipenis. It has two heads, and is generally heavily spiked on both heads. The organ retracts into the tail of the animal when it’s not mating, and is one of the defining characteristics of the order Squamata.

Recuil de Planche coloriees d’Animaux du Bresil, publie par S. A. S. le Prince Maximilien de Wied-Neuwied. 1822.

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