Kofoid. — Development of Limax. 



PLATE V. 

 Figs. 33, 34. Twenty -four-cell stage, composed of the following cells: a 5-4 -G? 5-4 ; 



a 5.3_ c /5.3. a S.4_rf6.4. a 6.3 _ J6.3 . a 6.2_J6.2 ; a 6.1 _ J6.1. 



Fig. 33. View of the left posterior quadrant (d) from below. X 490. 



Fig. 34. Optical section of egg shown in the preceding figure, and in the plane of 



the paper, showing the right anterior hemisphere from the inside. 



Large cleavage cavity present. Amoeboid process (/w'c. aw.) on the 



cell a 6 - 2 . X 490. 

 Fig. 35. Twenty-eight-cell, stage composed of the following cells : — « 5,4 and 



7,6-8 r 6-8 ,76.8 c 1-l 



" ; „5.3_W5.3. „6.4_-V6.4. „6.3_,f6.3. n 6.2 7,6.2 _ ,76.2. 



a 6.i _ ^6.1, View from the animal pole. Division of the quartets 5.4 

 and 6.2. X 510. 



J6.8 



Fig. 36. Twenty-five-cell stage, composed of a 5A , r^- v c 5-4 , d 5A ; a 5 - 3 -e? 5 - 3 ; a 6 - 4 - 



d 6A ; a 6,3 - d 6 - s ; a 6 - 2 - d 6 - 2 ; a 6 - 1 - rf 6 - 1 . View of the animal pole. Divis- 

 ion of a 5 - 4 -c? 5 - 4 . Spindles in c 3 - 3 , c 6 - 4 . X 510. 



