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SCORPIONES. 



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two and a half times as long as wide, as high as wide; intercarpal spaces of segments 1 



the keels strong and with normal pearly granulation, the inferior medians smooth on the first ««»*?£ 



second; fifth segment finely granular, its upper surface raised slightly above the superior lateral — ■ — •* ft 



slightly wider than high, weakly granular, suhaculear tooth long, broad at base, slende- 



apically ; aculeus abruptly curved backwards from its base. Ghelce at most very finely gr 



and 



finger-keels on hand strong and smooth, inner finger-keel crenulate, rest of the hand smooth 



■ 



upper 

 with only a 



ja ^ ^^ VJTW — 



few weak granules on its'lnner'surface ; hand wider than brachium, which is three times as long as wide ; 

 width of hand less than half the length of the movable finger, which has a strong basal lobe and eight 

 rows of teeth. Pectinal teeth 27. 



Pfl 





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6 





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Tail nearly seven times as long as carapace, which is as long as its second segment, the latter twice as 

 long as wide, fifth as high as wide and about four times as long as wide; vesicle long and narrow, 

 narrowly elliptical when viewed from below, without trace of shoulder-prominences. Band approxi- 

 mately as in female. Pectinal teeth 27-28. 

 Measurements in mm.— % . Total length 72, carapace 7*2, tail 42; width of first segment 3'5, length 4-8, 

 length of eighth 8-8, width 2-8 ; width of hand 3, of brachium 2-3. <f . Total length 67, carapace 6, 

 tail 43 ; length of first segment 5, width 3, length of fifth 8-5, width 2+ ; width of vesicle 1-5. 



Hob. Mexico, Yucatan (coll. Keyserling *), Temax in N. Yucatan (Gaumer) 



* 



Though resembling C. margaritatus in some respects, C. ochraceus may be 



■ '• 



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distinguished 

 hairy chelse, larg 



uniformly yellowish-brown coloration, small 



y sparsely 



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ubaculear tooth, and more 



ptly bent aculeu 



A 



O 



m 



* 



the carapace is as long as the second caudal segment, whereas in the male of 



C. mar gat 



narrowly 



it is much shorter, and the vesicle, when viewed from below, is 



ptical, without 



prominence, whil 



in a 



'qaritatus it is 



parallel-sided and strongly shouldered 



■ 



S 





10. Centruroides margaritatus 



(Tab. VII. figg 



t 



1 , 1 a-e, 



O 



■ - 



Scorpio margaritatus, Gervais, Voyage de la Bonite/i. p. 281, Atlas, Apteres, t. 1. figg. 13-17 



(1841) 



Ins. Apt. iii. p. 55 (1844) 



Mus. iv. p. 224 (184i) 



Centrums margaritatus, Pocock, Journ. Linn. S 



Tierr., Scorpiones et Pedipalpi, p. 93 (1899) 



(1893) 4 j Kraepelin, Das 



Mus 



(1899) 



6 



Scorpio edwardsii, Gervais, Arch. Mus. iv. p, 216, 1. 11. figg. 13, 14 (1844) 7 ; Ins. Apt. iii. p. 53 



Myriap 



Mus 







Ins. Apt. iii. p. 54 



(1844) 



ii 



Centrums de geerii, Thorell, Atti Soc. Ital. xix. p. 167 (1877) 12 ; Kraepelin, 



Wiss 



Anst. viii. p. 133 (1891) 13 . 



IV. 



Tityus carinatus, C. Koch, Die Arachn. xi. p. 2, i 



-i ■ ■ 



Tityus macruruSy C. Koch, loc. cit. p. 16, fig. 859 

 Tityus ducalis, C. Koch, loc. cit. p. 38, fig. 869 16 . 



■ 



Centrums gambiensis, Karsch, Mittheil. Munch. < 



? Centrums granosus, Thorell, Atti Soc. Ital. I 



(184 



tr\ 14 



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15 



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123 (1879) 



17 



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Nat. xix. p. 155 



') (nee C. granosus, 



Kraepelin) 



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$. Colour of upperside of trunk a rich deep reddish-brown, the last tergal plate generally paler; sterna 

 paler, the posterior darker than the anterior; tail on its anterior segments yellowish, brownish posteriorly 







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