The Metamorphosis of Asterias pallida, 



with Special Reference to the Fate of 



the Body Cavities.'^ 



by 

 Seitaro Goto. 



Professor in the First High School, Tokyo. 



With Plates XIX—XÄIV. 



This paper embodies a full account of the results of my work on 

 the metamorphosis of Asterias paUida, of which a preliminary report 

 has been published in German ['9G a] and in English ['96 h]. 

 To Dr. A. Agassiz I am indebted for his courtesy in enabling me to 

 spend several weeks in his Laboratory at Newport, R. I., and to 

 Prof. E. L. ]^Iark, under whose direction the work was done, I am 

 obliged for his friendly interest in my work and valuable suggestions ; 

 and it gives me much pleasure to express my best thanks to both of 

 these gentlemen. 



The material was fixed in the following mixture : 



Saturated solution of corrosive sublimate 80 cc. 



Concentrated glycerine ^^ " 



Glacial acetic acid ^ " 



The larvœ were either dropped from a pipette into the mixture 

 or else they were put into a watch glass with some water, the 

 water then softly drawn out with a pipette u ntil just enough was left 



1) Contributions from the Zoological Lalionitory of the Museum of Comparative Zoology 

 at Harvard College, under the direction of E. L. Mark, No. LX XXVIII. 



To avoid misunderstanding the writer begs to state that owing to geographical separation 

 it has not been possible to submit the manuscript or proof sheets of this paper to Prof. Mark 

 before publication. 



