Classificatton of Scorpions. 7 



but along the outer side they are arranged in a series of 

 teeth placed two and two obliquely and transversely near to 

 each other. No tooth or spine under the base of the sting. 

 Generally two accessory eyes, besides the three principal eyes, 

 on each side of the cephalothorax. 



1. The fifth joint of the tail broadly excavated above, its superior margins 



forming an elevated denticulate or granulate keel. Tail genei'ally 

 inci'easing in breadth from the base to the fifth joint. 



Androctonus, (Hempr. et Ehr.), 1829. 

 Type A. australis, (Linn.), 1758'. 



2. The upper margins of the fifth caudal segment rounded, not compressed 



into an elevated keel Buthus, (Leach), 1815. 



Type B. europcett^, (Linn.), 1754^. 



Subfam. 2. Centrueini. 



The immovable finger of the mandibles has no tooth, or 

 only one, in the inferior margin. Lateral teeth of the palp- 

 fingers arranged in a single series, or forming several short, 

 transverse rows. The sixth caudal joint generally provided 

 with a spine or tooth under the sting. Accessory lateral eyes 

 often wanting, sometimes one or two on each side. 



A. " Joints of the tail destitute of keels " {Pet.') 



♦Uroplectes, Pet., 1861 '. 

 Type U. ornatus, Pet., 1861. 



B. At least a few of the joints of the tail evidently keeled. 



a. Inferior margin of the immovable mandibular finger toothless. 



1. Lateral teeth of the palp-fingers form on the inner side a single 



simple row ; on the outer side they are arranged in a row 



which partly consists of teeth placed two and two transversely 



near to each other, (A tooth under the sting is often wanting.) 



Lepreus, n.'' 

 Type L. pilosus, n.' 



1 = A. funesttis, Hempr. et Ehr. The Scorpio australis of Linnseus, 

 which was quite erroneously by DeGeer referred to an American species, 

 by Herbst to a scorpion which is perhaps identical with a species called 

 by me Buthus craturus, by Saviguy and Audouin to Andr. crassicauda, 

 (Oliv.), or A. bicolor, Hempr. et Ehr., is probably the same species aa 

 A. funestus, iid., which is, I believe, the Androctonus most generally met 

 with in European collections, and of which a very old specimen in the 

 National Museum of Stockholm is labelled "Scorpio australis, Linn." 



2 = Scorpio occitanus, Amour. 1789, or S. tunetanus, Herbst, 1800. 

 (Not =<S'. europteus, Linn. 1758!) 



3 Of his U. Jlavoviridis, however, Peters says (/. c. p. 516), "Obere 

 Schwanzkamme deutlich." Uroplectes'ia perhaps not different from Tityns 

 (C. L. Koch) nob. 



* Nom. propr. mythol. 



" Lepreus pilosus, n. 



Densius pilosus, pallide vel subcinereo-testaceus, oculis nigiis, caudaapice 



