14 ARKIV FÖR ZOOLOGI. BAND 8. N!0 18. 



Fig. 14. Mola. Transverse section of body with dorsal and anal fins. 



» 15. Balistes vetula L. Pelvic bone, lateral view. 

 »16. » » ventral view. 



Plate V. 



Fig. 17 — 18. Spheroides testudineus L. 18 mm. Transverse sections 

 of body. Fig. 1 7 through the anterior, Fig. 1 8 through 

 the posterior part of the body-cavity. — Microphotos. 



Tryckt den 28 augusti 1913. 



Uppsala 1913. Almqvist & Wiksells Boktryckeri-A.-B. 



