Classification of Scorpions, 13 



2. Inner margin of the hands very thick, not compressed. 

 (Dorsal eyes situated a little in front of the centre of 



cephalothorax.) Palamn>*;us, n." 



Type P. Petersii, n.* 



** Anterior margin of cephalothorax rather slightly emar- 

 ginate in the middle ; frontal lobes broadly truncate ; 

 dorsal eyes situated behind the centre of cephalothorax. 



Ml^EPHONUS, n.^ 

 Type 31. Wahlbergh, n.* 



tt Dorsal eyes situated about double as far from the anterior 

 margin of cephalothorax (which is but little or not emar- 

 ginate) as from its posterior margin. Labial lobes of second 

 pair of legs together a little broader than (not more 

 than half as broad again as) sternum. The sixth caudal 

 joint destitute of rows of granules and of distinct grooves 

 on the imderside. 



Opisthophthaxmus, C. L. Koch, 1837. 

 Type O. capensis, (^Herbst), 1800. 



. Lateral eyes, at least the anterior one, situated very near to or 

 on the lateral margin of cephalothorax. Hand-back forming 

 an obtuse or nearly right angle with the upper surface of the 

 hand. (Cephalothorax emarginate in front. Dorsal ej^es not 

 far removed from its centre. Sternum not, or only a little, 

 narrower than the labial lobes of the second pair together. 

 Tail rather slender, its sixth joint long and narrow, destitute 

 of grooves and rows of granules on the underside. Body 

 and hands in general flattened.) 

 t Tail not much compressed ; its superior margins rounded, not 

 keeled. 

 1. The elevated lateral margin of cephalothorax visible under 

 the lateral eyes ; these eyes, therefore, separated from 

 the margin by a slight interval. Hancs not much flat- 

 tened Opisthacanthus, (Pet.), 1861 '. 



Tj'pe O. elatiis, (Gerv.), 1844. 



' nakaixvaios, murderer. ^ = Heterometrns megacephalus, Sim. 



' fiiai<p6vos, stained with blood, murderer. 



* Mitephonus WaUheryii, n. 



Supra fusco-testaceus, segmentis abdominalibus basi late nigricantibus, 

 Cauda versus apicem plus minus late infuscata ; subter cum pedibus tes- 

 taceus ; cephalothorace segmenta caudse primum et secundum cum 

 dimidio tertii longitudine superante ; cauda leviter carinata ; manibus 

 latis, intus fortiter rotundatis, supra pajne Isevibus ; dentibus pectinum 

 circa 18. Long, circa 78 millim. Africa, Cafiraria. 



' In this genus the hind lateral eye is sometimes (as in O. elatus) 

 placed a little nearer to the middle eye than this to the anterior, as also a 

 little more inwards than the other lateral eyes. Peters has based the 

 genus on this character, which, however, appears to me to be of less im- 

 portance than that here given. 



