1007.] 



FROM TIIK CAPE Vf:RDE ISLANDS. 



[51] 



portion is wrinkled ami twisted as if it wei'e less strong, more 

 collapsable than the other portions. 



Gonosome. — The gouophores are fixed, not developing into free 

 medusoids, and lie within the tube from which the ]iy<lrnnth 

 projects. They branch off from the coenos-arc of the ramnhis from 

 '1 to 3 mm. below the hydnuith itself, and are long, slender, 

 spindle-shaped bodies, , sometimes 2-5 mm. in length by 0-1 mm. 



Text-fig. \i?K 



SoUnlopsis lUmlriformis. IlyJraiith ami goiiopliorc, X30. 



b., bulging portion at liuse of liydrantli almost filling the opening of tlie tube; 

 peri., pei-isarc ; (tclo., ectoderm, represented within the tube by a dark line ; 

 ererfo., endodcrm (lined); o«., ovum ; ra«., central cavity of gonophore ; (/on., the 

 arrow points to the place where the gonophore branches olf the general ciBiio.«arc : 

 coen.y general coenosarc. 



in diameter. Their .structure is simple, the gonophore being 

 apparently a hollow cylinder clo.sed distally, with two-layered 

 walls, a thick ectoderm and thinner endoderm, within which ova 

 develop to the number of about 13 or more. The ova develop 



34* 



I* iy7 



