384 ON THE ANATOMY AND GENERIC CHARACTERS OF SCORPIONS. 



Fig. 6. Similar structure combined with punctate ornament from the periphery of the 



same lamella. 

 Fig. 7. Simple punctate ornament of the lung-lamellse of Scorpio (Butlms) cyaneus. 



Seen also in Euscorpius italicus, in Brotheas subnitens, and in Telegonus, sp. 



PLATE LXXXII. 



Figs. 1, 2, 3. Complete ventral surface and limbs of Butlms cyaneus, Prionurus funestus, 



and Euscorpius italicus. 

 Fig. 4. Sternal region of Telegonus, sp., from Coquimbo (British Museum). 

 Fig. 5. Ditto ditto, from Tasmania (British Museum). 



Fig. 6. Ditto of the common American and West-Indian Centrums (C. americanus). 

 Fig. 7. Ditto of the common African Centrums (C. hottentotus). 

 Fig. 8. Lateral eyes of the Tasmanian Telegonus. 

 Fig. 9. Ditto of Euscorpius italicus. 

 Fig. 10. Ditto of Butlms cyaneus. 

 Fig. 11. Ditto of Centrums hottentotus. 

 Fig. 12. Ditto of the Telegonus from Coquimbo. 

 Fig. 13. Ditto of Centrums americanus. 

 Fig. 14. Ditto of Prionurus funestus. 

 Figs. 15-21. Sting and last tail-segment of species of Scorpions as marked on the Plate. 



PLATE LXXXIII. 



Figs. 1 to 12. Chelicerse : movable (in) and fixed (/) rami being placed side by side, 



of various species of Scorpions as indicated on the Plate. 



a in one ramus indicates the margin which works against a in the other. 

 Fig. 13. Liver (gastric gland) of Anclroctonus (Prionurus) funestus. a, anterior division, 



more branched, sometimes distinguished by the name " salivary gland " ; 



b, compact, slightly fissured, main mass of the gland. Nat. size. 

 Fig. 14. Liver (gastric gland) of Euscorpius italicus, Roes. Letters as in fig. 13. 



Magnified five diameters. 

 Figs. 15-20. Prosomatic tergite of various Scorpions, indicated by name on the Plate. 

 Figs. 21-24. Toothing of the fixed (/) and movable (m) rami of the chelae of four 



species of Scorpion. 



