Prenral Lohf. - 



Hijfht Bruod-pvuchf 



FiC.I. ASTERIAS BRANDTI. 

 YoMnqest embryo of brood 

 y./Zi. 



Position of openings 

 \^^ shown in Fiij 4. 



^^^^s-Left Brood Bovch 



Fic 2 Ophiopluteus n sp ' 



X./00 t\ 



Or>P7ifnos of 

 " ood'pouches 



Fig 3. Ec hinoplu teu s antarct-icus. 

 x/00. 



A] 



q^' 



■ Ventral 

 Tentacles. 



Fig, 4 Cucumaria crogea. 

 Adult female— to show 

 openings of brood-pouches. 

 X 1. 



Fig 5. Cucumaria crocea 

 Adult female — to show 

 interior of brood-pouches, 

 x/. 



_ . Veil ha 1 T<m. tanles 



'Pare Canal 

 ^j »*-.^^_^ ^ Axial SiTMi.s 



, Stone Canal . 



Poiian Vesicle -fk- 



Fic 6. Cucumaria crocea. 



Young embryo born after 

 capture of mother. 

 x/-2i. 



EpineuJ'al Can al. 

 '^'\- - Radial Iv^rve. 

 ■''• Y ~ RacLxal Canal. 



Ring Canal 



lEsophaO'^ 



Antarctic (Discovery) Exp. 



Fig. 7. Cucumaria crocea 



Transverse section through 

 anterior region of embryo 

 shown in Fig6. 



.1. 0. S. del. Butlcrworlh. sc- 



Larval Echinoderms. 



To be bound with pljle. Larval Kcliinoderm^. 

 Antarctic (Discovery) E.\p 



