Sliiflies on niMi'inc Oslracods 



M a t u r (' i' c 111 a 1 e s: 



1 specimen with a shell-lengtli of 3,65 mm. 



5 specimens „ „ „ „ „ 3,6 



3 



4 



4 



3 



2 



M a t a r c m a 1 e s: 



10 s|)ecimeiis witli a shcll-lonotli (if ,'5.3 mm 



3 " '\ 9^ 

 1 sp(>fimeii „ „ „ „ „ 3.2 



L a r V a 1 s t a s^ e s: 



Stage I: T^'uica witli S claws (males and females) 



4 specimens with a shell-leiioth of -J,!) mm 



„ :, 2,85 „ 



137 



,, 3,45 ,, Mean 3.4f) mm. 



Mean 3,27 mm. 



4 

 3 



J J M J J 



?) 55 )» 



J> M ?> 



„ 2,8 

 „ 2,7 



Mean 2.81 mm. 



Stage II: Fiirca witli 7 claws. 



3 specimens with a shell-length of 2,4 mm. 



)) >J 5» 



„ 2,3 

 2 2 



Mean 2,32 mm. 



n.| 



, Mean 1,01 mm 



1 specimen ,, ,, ,, ,. 



Stage III: Fnrca with claws. 



1 specimen with a shell-length oE 2,0 mm. 

 5 specimens ,, „ ,, ,, ,, 1,9 

 1 specimen ,, ,, ,, ,, ,, 1,85 



S t a gel V: Fnrca with 5 claws. 



1 specimen with a .shell-length of 1.5.") mm.) ^lean 1.55 mm. 



S t a g e \': Fnrca with 4 claws. 



1 specimen with a .shell-length oi 1.35 inm.l ., , ,, 



^ ' . ^U'■^n 1,31 mm. 



4 specimens ,, ., ,, ,, ,, 1,3 ,, ) 



(J r o w t h - f a c t o r. found empirically ^ 1,21. 



Estimated lengths of the last five larval stages: 



2. SI : 1.21 - 2,32; 2,32: 1.21 ^ 1.91; 1.91 : 1,21 -^ 1,58; 1,58: 1.21 - 1.3 



(2.81) (2,32) (1,91) (1,55) (1.31) (arlual means 



Length of Stage I, 2.81 mm. 1.21 3.4 mm. 



Zoolou. bMmu, Uppsniu. Snppl.-Bil. I, 



IS 



