• Palamnaeus is commonly known as scorpion.

• Body is elongated, segmented and divisible into anterior prosoma (cephalothorax), middle mesosoma and posterior metasoma.

• Prosoma is six segmented and bears a pair of median eyes, 2-5 pairs of lateral eyes and six pairs of appendages.

• Mesosoma is seven segmented.

• Metasoma composed of five segments without appendages.

• Last segment of metasoma bears a sting consisting of an ampulla and a spine.

• Sexes are separate.