Palamnaeus

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CLASSIFICATION:

Phylum :Arthropoda(Jointed legs)

Sub-phylum :Chelicerata (Feeding appendages called chelicerae)

Class : Arachinida (possess both lungs and tracheae).


COMMENTS:

• Commoly called as scorpion.

• Body is elongated, segmented & differentiated into anterior prosoma and posterior opisthosoma.

•Opisthosoma is sub-divided into a broad anterior mesosoma & a narrow posterior metasoma.

•Prosoma is covered dorsally by a carapace.

•Body is encased in chitinous covering.

•Mesosoma is composed of 7 broad segments & metasoma of 5- narrow segments.

• Last metasomatic segment is telson containing a sting. Ventrally the sternum of 1st segment contains a pair of genital openings.

•Metastoma is limbless.

•Sexes are separate without sexual dimorphism and Viviparous.

•Habit & Habitat: It is a nocturnal arthropod. Found in sand.

• Distribution: cosmopolitan distribution.



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