KOKUBO: A NEW SPECIES AND TWO XEW VARIETIES OF r>lAPTOMUS. 211 



(1) *S<c:&^-c itM^B -mmtm^ &\ i^^ X b ^mBI^ if 



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(2) |g 3L ?^ In li i^ ^ Bl < L -C I), bacilifer C7)^n<^^gi-^MLa 



(3) m <o m n^ ^ ^ \^ M it.-^m ^^ ^ ^ ii - B ^ n '£ ^ (S ic st-c 

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 (7) *: a ;7) ^ -g: 1+ I* J: (, ^3 ^ :Ji /h :^ 6 , 

 :^ {t D. gracilis ^ S ;5: 5 .^ I: ^^ (' n U\ 



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 4- { . ^^ 9\-M p^w ^n ^ iä: m. -^ M {z. to 



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EXPLAXATIOX OF PI. I. 



Figs. 1-5. Dlaptomus denticornis Wierzejski var. yezoeusis. 

 Fig. 1. Dorsal view of tht female. x .50. 



2. Fifth foot of the male. x 158. 



3. Fifth foot of the female. x 158. 



