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44 



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SCORPIONES. 





































6 . Total length 80, carapace 7 ; tail 55, width of first segment 3, of fifth 28 ; length of hrachium 8*8, 

 width 2 ; width of hand 2-5 ; length of underhand 5, of movable finger 9. 



Hob. Panama 1 (Mus. Brit.).— Gui an a, Demerara. 





i 



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Although Kraepelin gives Venezuela 



doubtful locality for this species 





ha 







s 



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only been previously 

 Museum has several 



recorded with certainty from De 



exampl 



The above-g 



descript 



whence the British 

 taken from an adult 



male and female collected in Demerara by Mr. W. L. Sclater. 

 In general appearance T. androcottoides closely resembles T, 















but differ 



tially in the fusion of the infer 



keel 



f the second, third, and fourth caudal 



























k 



















































r. 













' 





















■ 







gments, as well as in the secondary sexual characters of the m 



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4. Tityus crassimanus. (Tab. IX. figg. 6, 6 a- 



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Isometrus crassimanus, Thorell, Atti Soe. Ital. Sci. Nat, xix. p. 129 (1877) \ 

 Phassus crassimanus, Kraepelin, Jahrb. Hamb. Wiss. Anst. viii. p. Ill (1891) 2 . 



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Tityus crassimanus, Kraepelin, Das Tierr., Scorpiones et Pedipalpi, p. 76 (1899) . 



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$ . Colour yellowish-red, mandibles infuscate ; carapace with a triangular fuscous interocular area and a 

 black margin ; terga with three black patches, one median divided by a spot on the keel, and one on each 

 side midway between the lateral border and the median patch, these patches constituting three longitudinal 



black bands ; ventral surface yellow, the last sternum infuscate posteriorly ; tail yellowish above, darker 

 posteriorly, the underside of the segments spotted with black, the fourth and fifth segments deep blackish- 

 brown, vesicle reddish-brown ; legs and chelae mottled with black ; hands reddish, fingers black with 

 yellow tips. Carapace somewhat coarsely granular, with granular crests on the ocular tubercle ; shorter 

 . than the first, about as long as the second caudal segment, and as long as the brachium. Terga also 

 beset with somewhat coarse shining granules. Sterna finely granular, the posterior more so than the 

 anterior, a smooth area on the posterior third of the first, second, third, and fourth, the fifth granular 

 throughout, with four granular keels. Tail a little more than six times as long as the carapace, expanded 

 posteriorly, the first segment one-fourth longer than wide, second, third, fourth, and fifth almost twice as 

 long as wide ; vesicle wide, much wider than the brachium, its width much more than half the length of the 

 latter ; the superior caudal keels weak, the rest normally developed and granular ; sides and lower surface 

 of tail studded with coarse shining granules, which, on the fourth and fifth segments, are very numerous and 

 close-set or even confluent ; upperside of fifth, and in a lesser degree of fourth segment, granular ; vesicle 

 studded with low squamiform granules, subaculear spine reduced to a minute tubercle. Chelce granular 

 above, with coarsely granular keels ; brachium scarcely more than twice as long as wide ; hand shining 

 granular, especially internally, crested, very wide, the width equal to that of the fourth caudal segment 

 and almost equal to the length of the underhand, and to about half the length of the movable finder • the 

 latter, like the immovable, strongly lobate and furnished with 14-15 rows of teeth. Pectines with 

 18-20 teeth. 



Measurements in mm. — <5 . Total length 65, carapace 6 ; tail 40, width of first segment 3-5, of fifth 4 • length 

 of brachium 6, width 2-5 ; width of hand 3-8 ; length of underhand 4-3, of movable finger 7. 



Hah. Mexico. 



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The above characters are taken from a dried unlocalized male specimen in the British 

























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Mus 



This individual, how 





g 







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Thorell's and Kraepeli 

 the female has a rounc 



closely in all essential points with 



pt 



of T. crassimanus. 



base of the pecten 



According to Kraep 



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.s in T. cambridgei. 



The 







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III 







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