TEXT-BOOK 



OF THE 



EMBRYOLOGY OF INVERTEBRATES 



BY 



DR. E. KORSCHELT, DR. K. HEIDER, 



PROFESSOR OF ZOOLOGY AND COMPARATIVE PROFESSOR OF ZOOLOGY IN THE UNIVERSITY 



ANATOMY IN THE UNIVERSITY OF BERLIN. 



OF MARBURG. 



TRANSLATED FROM THE GERMAN 



BY 



MATILDA BERNARD. 



REVISED AND EDITED WITH ADDITIONAL NOTES 



BY 



MARTIN F. WOODWARD, 



DEMONSTRATOR OF ZOOLOGY, ROYAL COLLEGE OF SCIENCE, LONDON. 



VOL IV. 



AMPHINEUKA, LAMELLIBRANCHIA, SOLENOCONCHA, 

 GASTROPODA, CEPHALOPODA, TUNICATA, CEPHALOCHORDA. 



U. OF C. 



LIBRARY 



LONDON: 



SWAN SONNENSCHEIN AND CO., LTD. 



NEW YORK: THE MACMILLAN CO. 



1900. 



