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Show 128 MR. R. J. POCOCK ON THE SCORPIONS [Mar. 18, vesicle either with or without a tubercle «.„„„„„.„ Simon heneath the aculeus Subgenus G R O S P H U S , h m o n. beneath the aculeus & madagascariensis (Gerv.). e2. The basal pectinal tooth in the female like the rest; tail powerful and as a rule strongly keeled; withoutaspine or tubercle PAEABUTHU8, n. beneath the aculeus Subgenusx ^ ^ ^ ^ }< d1. Tergites with a single median and two lateral keels; cephalothorax, as a rule, distinctly keeled. fl. Fifth caudal segment with rounded supero-lateral edges Subgenus B U T H U S (s s.). b Type B. europceus (Linn.). q\ Fifth caudal segment with compressed njru.i.1 ^ carmate supero-lateral edges Subgenus P R I O N U R U S (Ehrb.) Type P. austrahs (Linn.). Hypothetical Pedigree of the Buthidae. Prionurus. Buthus. Centrums. Itometrrus Jeometroides. |
