392 ARKIV FÖR ZOOLOGI. BAND 1. 



Explanation of the plates. 



Plate 20. 



Euconaxius coronatus. 



Fig. 1. The right external antenna with the flagellum, viewed 

 from the outside and half from beneath. f. 



Specimen n:o 5. 

 » 2. The same antenna without flagellum and viewed as 

 fig. 1. f. Specimen n:o 1. 



a stylocerite, b scaphocerite, c the spinc on the third 

 segment. 

 » 3. The right internal antenna, viewed from above. f. 



Specimen n:o 4. 

 a the furrow of the peduncle. 

 » 4. The peduncle of the same antenna. The hairs covering 



the furrow have been removed. £. 

 » 5. The left third maxilliped, viewed from the outside. f. 



Specimen n:o 4. 

 a ischiopodite, b meropodite. 



"Crista clentata" of the same ischiopodite. 



» 7. The right leg of the first thoracic pair, viewed from 



the outside. f. Specimen n:o 1. 



» 8. The same leg from beneath. f. 

 » 9. The left chela of the first pair of thoracic legs, from 



the outside. f. Specimen n:o 1. 



» 10. The same chela, viewed from beneath. f. 

 Euconaxius crassipes. 



Fig. 11. The right foot of the first thoracic pair, viewed from 

 the outside. \. 

 » 12. The same foot from beneath. 

 Euconaxius coronatus. 



Fig. 13. The base of the left foot of the third thoracic pair 

 from the inside, showing the female genital open- 

 ing. f. Specimen n:o 1. 



» 14. The base of the right foot of the fifth thoracic pair 



from the inside, shoving the male genital pore. 



Specimen n:o o. 



