Embryology of Rotifer 



the eggs "are 'less liable to be rendered 



foreign bodies to their stick v surface. 



As the .-r is lar-e. elon-ated and r« 

 ftirnishes an unusually good rl.anc to 

 there being moreover resting periods i 

 author's account of the continued rearrai 

 meres within the e.irir membrane these 

 favorable objects tor inve-tiiratini: the n 

 and cell arrangements to mechanical pi 



The polar body is exceedingly large 

 present) and is formed on what proves 

 the anterior pole, so from this early .>tai 

 are oriented by this appearance at the ei 

 ted egg. 



Of the first two cells the larger, I, 

 smaller, A, posterior ; both divide. The 

 of cells on the right side, the progeny of 

 and left side. Other cells are budded 01 

 series. Thus an elongated, solid mass oi 



A few smaller, granular cells, likewise ov 

 the egg come to lie beneath the ectoderm a 

 ing the material for the pharynx aud saliv; 



!Carl Zelinka: Studien iiber Raderthiere Zdt. f. 



