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-lamellfe of Scorpio {Buthus) q/aneus. 



Seen also in Euscorpius itnJicms, in Brothens suhnitens, and in Telegomis, sp. 



PLATE LXXXII. 



Figs. 1, 2, 3. Complete ventral surface and limbs of Biithus cyanens, Prionwrws fwnesfns, 



and Eusrorpitis italicits. 

 Fig. 4. Sternal region of Telegonns, 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. mnericanus). 

 Fig. 7. Ditto of the common African Centrnrus {C. hottentoUis). 

 Fig. 8. Lateral eyes of the Tasmanian TeJegonus. 

 Fig. 9. Ditto of Euscorpius italicus. 

 Fig. 10. Ditto of Btifhus cyaneus. 

 Fig. 11. Ditto of Cciitrunts hoffenfotiis. 

 Fig. 12. Ditto of tiie Tele(/o/iiis from Coquimbo. 

 Fig. 13. Ditto of Cenfrurus nmericanus. 

 Fig. 14. Ditto of Prioniiriis fiinestus. 

 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 [m) 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 g\a.xiA) oi Androctonus (Pnonnrus) fmiestus. 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. 



