KoFOiD. — Development of Limax. 



PLATE V. 



Figs. 33, 34. Twenty -four-cell stage, composed of the following cells : aS-i - c?^-* ; 



a5.3_(/5.3. a^.i-d^.i. a6-3-c/S.3; a6-2-(/o.2. a6.1_d6.1. 



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



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



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



Large cleavage cavity present. Amoeboid process (pr'c, amce.) on the 



ceil a«-2. X 490. 

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



A6.8 ^6.8 /7H.8 ^-.i 



° " " ; a5-3-af5.3. a6.4_(/6.4. a6-3_rf6.3. a6.2 ^6.2 "- ^6.2; 



^,%'^ fib.? g^j.7 ' C'-3' ' 



q6.i _ (/6.1, "View from the animal pole. Division of the quartets 5.4 

 and 6.2. X 510. 



56.8 



Fig. 36. Twenty-five-cell stage, composed of ifi-'^, r^^, c^-*, rf^-i; a5.3_(/5.3. «6.4 _ 

 c?6.4. <{6.3_£/6.3. a®-^-rf^-- ; ti^-^-rft'-i. View of the animal pole. Divis- 

 ion of a^-'^-d'^-K Spindles in c^-s, c^-*. X 510. 



