Williams. — Eye of Flounder. 



PLATE 1. 



{Pseudopleuronectes americanus.) 



Fig. 1. Recently hatched fish (12 days old) from right side. X 30. 



Note. — The line indicating the length of this specimen is J millimetre 

 too long. The length of the fish was 3.5 miUimetres. 

 Fish of Stage III. X 10. 

 Fish of Stage II. X 10. 

 Fish of Stage II, face view. X 35. 

 Fish of Stage IV, face view. X 8. 

 Fish of Stage IV, from right side. X 8. 



Facial portion of the cartilaginous cranium of a recently hatched fish. 

 Stage I, projected on the frontal plane. X 200. 



