Ficl. ASTERIAS BRANDTI. 

 Younuest embryo of brood. 



Positio'n of openings 

 <- ^ shovun LTi Fiq. 4-. 



FlC.2. PHIOPLUTEU 3 N SP ? 



x/00 



Openin^.-i of 

 ^rood-pouches 



Bight Brood-pouch 



FlG.S.EcHINOPLUTEUS ANTARCTICUS. 

 x/00. 



-Left Brood-pouch. 



FiC. 4. C UCUMARIA CROCEA. 

 Adult female— to show 

 openings of brood-pouches. 



Fig 5. Cucumaria crocea. 

 Adult female — bo show 

 interior of brood-pouches. 

 x/. 



<■ Vert tra J Tev. tarles 



Pore CannZ 



^ Axial Sinus, 



Stone Canal. 



Polian Vesicle. 



Fig. 6. Cucumaria crocea. 



Young embryo born after 

 capture of mother. 

 x/Zi. 



ineui'ul Canil. 

 Radial Nerve. 

 Radial Canal. 



Ring Canal 



~^(JSsophaffai. 



Antarctic (Discovery) Ex 



^Discoverv^Exp. 



FiG.7. Cucumaria crocea. 



Transverse section through 

 anterior region of embryo 

 shown in Fig^ 6. 



[.iirval Ecliinodernis. 



