64 



AiMrilll'OD CKUSTACKA OF THE GICNUS GAMMARUS 



(1) The accessory flag'ellum of tlie first antenna. Tlic number of the joints (^f the 

 accessory flagelhim of the first antenna is given as four by Sars (op. cit. ), Stebbing (op. cit.), 

 and Clievreux and Fagc (1925), but the present specimens show considerable variation in the 

 numl)er of these joints; in most cases 2 or 3 and rarely only one. The specimens with 

 typical 4-jointed accessory flagella were chiefly collected from the localities in Kashmir at alti- 

 tudes between 1200-1600 m., wliile the s])ecini?ns collected fnmi the higher Ladak localities 

 have usually 2-jointed llagella, rarely 3- or 4-jniiiied unes. 



TAI5LE 1 

 List of the Localities in which the Gammarids were Collected 



Note: — K . . . the localities in Kashmir; L . . . the localities in Indian Tibet (Ladak) ; the figures 

 witiiin brackets show the number of specimens examined. 



* Tlie specimens labelled K 42. 



t The localities numbered from L 78 to L 85 are located south of tlie Ladak Range. 



