depending on this for : md food, can not exist out of 



the pc 



Unable to fertilize artificially the eggs of Sipho stoma 

 floridae , - It i assible to get from 



pouch . show the formation of polar bodies, 



I am unfortunately not in position to sa. 



process of maturation. For the latest and best this 



phenomern iader is refer- .. 3ehren's paper f'3o). 



V. 



In the Pipefish, fertilization is not necessary to 

 about the formation of the i i,l disc. Immersion in 



.•lies the stimulus as it does in 



workers on the Salmonoi , i ''oz), tT isf'93), and 



s, so report. hbwalewski ( '86) found it true for the 

 Ooldfish, as did Agassis a Lan ( '85) for Ctenoiabrus . 



.. they state that for pelagic eggs the germ disc is 

 generally not formed until after impregnation. Brook f ' 86 ) 

 confirms this . Lng, but I have found that the eggs 



of the Sar Lsh, Pterophryne hi strip , form the germ disc 



shortly after extrusion. Hertwig says (Fandbuch p. 544), 

 "One can emphatically say for almost all fish eggs that, 



