40 ARKIV FÖR ZOOLOGI. BAND 13. N:0 25. 



Fig. 1. — Three plasma- amoebocy tes, free in the meshes of the 

 coagulum; diameter = 37,4 ]X. 



Fig. 2. — A set of plasma -amoebocy tes attached to a membra- 

 neoiis part of the coagulum, which has become slightly extended in 

 one direction. 



Figs. 3 and 4. — Two plasma-amoebocytes from the same part 

 of the coagulum; highly magnified; length = 30,6 [J- and 51 [J.. 



Figs. 5 — 8. — Blood corpuscles; diameter == from 8,5 to 10,2 {X. 



Figs. 9 — 10. — Colourless »amoebocy tes with sperules»; diameter 

 8,5 |X to 18,7 [J-. 



Tryckt den 5 april 1921. 



Uppsala 1921. Almqvist & Wiksells Boktryckeri- A.-B. 



