Plate II 



Fig. 8 Crangon, thirty-one days. One moult sixteen days after injury. Dorsal view. Operation 

 rettioved small part of inner anterior ommatidial surface. Injured eye four-fifths length of normal. 

 X 45- 



Fig. 9 Palaemonetes, thirty-three days. First moult fourteen days after operation; second moult 

 nine days later. Dorsal view. Injury chiefly on posterior ventral edge. Injured eye four-fifths 

 length of normal eye. X 35. 



Fig. 10 Palaemonetes, thirty-three days. First moult fourteen days after operation; second moult 

 ten days later. Whole of ommatidial region destroyed. Regenerating eye four-fifths length of normal 

 eye. X 35. 



Fig. II Palffimonetes, thirty-five days. First moult sixteen days after operation. Ventral view. 

 Part of ommatidia removed from ventral side. Upper end of eye more pointed than usual. Pigment 

 appears unevenly distributed. Regenerated eye seven-eighths length of normal eye. X 45. 



Fig. 12 Hermitcrab, thirty-three days. First moult thirty-two days after operation. Dorsal view. 

 Operation removed all of ommatidia and part of optic ganglion. Small, complete, new eye regenerated. 

 New ommatidia shorter than normal. New eye two-thirds length of normal eye. X 45. 



Fig. 13 Hermit crab, thirty-eight days. First moult twelve days after the operation. Dorsal view. 

 Ommatidial region and nearly half of the ganglion removed. Very small but perfect eye regenerated. 

 Regenerated eye four-sevenths length of normal eye. X 45. 



