MARINE ZOOLOGY OF OKHAMANDAL. 



PLACUNA, PLATE III. 



16 



Au, r Au..ch. 



18. 



Au.ch. 



Art.a.p'-- 



C.brurf.'. 



14. 



Sn.paLl.av/ 





19. 





ANATOMY OF PLACUNA. 



Edwin Wilso: . 



