1901.] 0HU8TA0EA OL THE " 8KEAT BXPBDITIOIT." 559 



rectilinear; on segments 5-0 there is only one white hand, which 

 in the latter is convex to the hind niargiu in the middle line. The 

 legs are longitudinally striped with white. 



This individual presents all the characteristics of 8. ornatus as 

 defined by Dr. Ortraann (I.e.); the points of difference may he 

 grouped under three headings : — 



a. The small number of spines on the carapace. 



b. The coloratiou, i. e., the three distinct white hands, 

 running longitudinally on the carapace aud parallel to each other. 

 Here, too, 1 may note that the coloration of the ahdomen aud 

 legs is that of 8. fasciatus de Haau, but the number of teeth on 

 the autennal segment is that of S. ornatus, viz. four. 



e. A point I have not mentioned above, viz., that the inner 

 antenna? exceed the outer considerably in length, namely, by the 

 last joint and one-third of the penultimate joint. In regard to this. 

 Dr. Ortmanu says : " Stiele der inneren Autennen et was langer oder 

 so lang wie die der aiisseren." 



XXX IX. Genus Atva. 



64. Atia ahmata A. M.-Edw. 



Atya ariaata, A. M.-Edw. _\uu. Soc. En torn. France, H> iv. 

 p. 149 (TS64); Lanchester, Ann. Mag. Nat. Hist. (7) vi. p. 262 

 ( 1900). 



Ad/a mohiccensis, de Han, Weber's Zool. ESrgebu. p. 357, pi. xxi. 

 fig. 20 i L892). 



Loc. Selama Eiver, Perak. An adult male. 



Eelimbing. Three males aud three females, all young. 



The young forms agree entirely with the description given by 

 Dr. de Man (t. c. p. 358) ; but the adult presents points of 

 difference, in regard to the spines on the last three legs, from the 

 individual examined by Dr. de Man. In the 3rd pair, the merits 

 of the right (larger) leg only bears a blunt tubercle near the 

 carpal joint, and the carpus bears on its under surface a much 

 -mailer tubercle, which, in flexion, nearly meets that on the merus. 

 In the 4th pair, the merus of the right leg bears only one spine 

 instead of two. and the carpus one. The left leg has one on the 

 merus, uone on the carpus. The 5th pair are as described by 

 Dr. de Man. 



The teeth on tin,' under surface of the rostrum number as 

 follow a : — 



Adult -i '.». 



1'oung (J 10, 13, 11; ? 9, 13, 10. 



The length of the adult is 81 nun. ; the young specimen- rang.' 

 between 57 mm. to 47 mm. 



XL. (xeuus L'aiuuin \. 



65. CaBIDIBTA mii.tiijun r.vi v Stimpson. 



Carulina multidentata, Stm. Proc. Ao. Nat. Sci. Plulod. p. -'■' 



