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SCOEPIOKES. 













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middle, with a single granular keel on each side ; tail much smoother, median 

 lateral crests on third and fourth segments scarcely granular; brachium 

 and hand smooth and polished, except for the granules on the crests and a 

 few coarse granules on the distal end of the upper surface of the brachium ; 

 hand with only a few rounded granules on the inner edge and on the keel 

 above the underhand; coxse of legs almost entirely smooth ; movable finger 

 shorter than carapace . . . ..... . . • ,. . . . ,. . .. . .. • 



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aztecus y sp. n. 



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l. Hadrurus hirsutus. (Tab. II. figg. 2, 2 «, s .) 



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Buthus hirsutus, Wood, Proc. Ac. Philad. 1863, p. 108 l ; Journ. Ac. Philad. (2) v. p. 367, t. 40. 



figg. 1, 1 a-c (1863) 2 . 

 Hadrurus hirsutus, Thorell, Ann. & Mag. Nat. Hist. (4) xvii. p. 11 (1876) 3 ; Atti Soc. Ital. Sci. Nat. 



xix. p. 189 (1877) 4 ; Bull. Soc. Ent. Ital. xxv. p. 373 (1895) 5 ; Karsch, Mittheil. Munch, ent. 



Ver. iii. p. 136 (1879)°; Marx, Proc. Ent. Soc. Wash. i. p. 91 (1888) 7 ; Kraepelin, Jahrb. 



Hamb. Wiss. Anst. xi. p. 205 (1894) 8 ; Das Tierr., Scorpiones efc Pedipalpi, p. 188 (1899) 9 . 

 Buthus emarginaticeps, Wood, Proc. Ac. Philad. 1863, p. 109 10 ; Journ. Ac. Philad. (2) v. p. 367, 



t. 40. fig. 4 (1863) " (teste Marx, Proc. Ent. Soc. Wash. i. p. 91). 



Hob. North America, San Bernardino in California 2 , La Paz in Lower California n . 



Arizona 



Guatemala 



This species 



ded from Guatemala by Th 



was 



ally discovered 



Califor 



The Berlin Museum has an example from La Paz, and the British Museum 



zona. The 



one from San Bernardino. Kraepelin also states that it occurs in Arizona. 

 specimen Thorell records from Guatemala was received from Dr. Gustav Eisen, of San 

 Francisco, California. Hence it is permissible to doubt the authenticity of the locality, 



that two other well-known Californian species, namely 



especially in view of the fact that two 



Uroctonus mordax and Anuroctonus phceodactylus, were received from i 

 and labelled " Guatemala." 



Judging from the three specimens in the British Museum that I refer 



namely, the one from San Bernardino mentioned above 



smaller examples for 



which no locality is known, H. hirsutus may be easily distinguished from H. 



by the features pointed out in the synoptical 



These specimens agree tolerably 



closely with the examples which Thorell described with much minuteness in 1877 

 Wood's description is not all that can be desired, and Kraepelin's is too generalized 

 be satisfactory ; but in some respects it does not fit the Californian specimen known 

 me, e. g. in the smoothness of the first four tail-segments and of th 



characteristics, however, it ag 



i sterna. In these 



more closely with the two smaller unlocalized 



specimens in the British Museum, which, judging by the 



of the San Bernardin 



(97 mm.) and tho 



Wood (which reached 108 mm 



They measure 75 mm. : Kraepelin gives 70 mm. as the maximum of the species 



































































































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