PLATE XXI. 



Order PHYSONECT.E. 

 Families CikcalidvE et Athoeida 



Figs. 1-4. Circalia stephanoma. 

 Fies. 5-8. Athoria larvalis. 

 Figs. 9-13. Larvae Phi/sonectarum. 



(ZOOL. CHALL. EXP. — FART LXXVII. — 1888.) — Hllllll. 



