302 PROCEEDINGS OF THE AMERICAN ACADEMY 



PLATE XIV. 



Ctenolabrus cceruleus, Dek. 



Fig. 1. Young 5""™ in length, fished up at the surface. Caudal fin forming. 

 " 2. Young 6™™ in length, anal and dorsal fins separated from the caudal, 



ventrals commencing to form. 

 " 8. Young 6.5™"" in length, somewhat more advanced than fig. 2. 

 " 4. Young measuring 7™" in length, the dorsal and ventrals somewhat 



better separated from the caudal fin than in the preceding stage. 

 " 5. Young 10™™ in length. 



PLATE XV. 



Ctenolabrus cceruleus, Bek. 



Fig. 1. Young somewhat more advanced than the stage of Plate XIV., fig. 5, 

 of about the same length. 

 " 2. Young 11mm in length. 

 " 3. Young 15™m in length. 

 " 4. Young of same size as preceding figure, but somewhat more advanced. 



PLATE XVI. 

 Fig. 1. Young Batrachus Tau, measuring 8"™ in length. 



LOPHIUS PISCATORIUS, Lin. 



Fig. 2. Three eggs embedded in the gelatinous membrane in which they are 

 laid ; magnified. 

 " 3. Young Lophius taken out of the egg just previous to hatching. 

 " 4. Young Lophius just after hatching. 

 " 5. Somewhat older stage ; the yolk bag has entirely disappeared. 



PLATE XVn. 



Lophius piscatorius, Lin. 



Fig. 1. Slightly older stage than fig. 5, Plate XVL 

 " 2. Same as fig. 1, seen from above. 



" 3. Older than fig. 1 ; the second ray of ventrals commences to form. 

 " 4. Anterior dorsal of slightly older stage, showing the beginning of the 



second ray. 

 " 5. Anterior dorsal rays of specimen somewhat older than fig. 4. 

 " G. Older stage than fig. 5, with longer dorsal rays in anterior fin and 



rudiment of third ; two large ventral rays. 

 " 7. Ventral rays of specimen somewhat older than fig. 3, about in the 



stage of fig. 5. 



J 



