DEVELOPMENT AND LIFE-HISTORIES OF TELEOSTEAN FISHES. 



941 



dorsal 



Plate XVI. 



Fig. 1. Pleuronectes flesus, larva 13 days old, April 26, 1886, 



Fig. 2. Gadus merlangus, early larva, April 24, 1885, .... 



Fig. 3. Pleuronectes limanda, 11 days old, May 22, 1886, .... 



Fig. 4. Dorsal view of the same, ....... 



Fig. 5. Slightly oblique view of an advanced larva of Pleuronectes platessa, May 7, 1886, 

 Fig. 5a. Slightly oblique view of an advanced larva of ,, „ May 7, 1886 



aspect, ......... 



Fig. 6. Anterior end of the larva of P. limanda, 8th day after emerging, May 19, 1886, 

 Fig. 7. Advanced larva of Liparis montagui, April 13, 1886, 

 Fig. 8. Larva of Trigla gurnardus, 3rd day out, May 31, 1886, 

 Fig. 9. Advanced larva of Cottus scorpius, April 13, 1886, 

 Fig. 10. Abnormal ovum of Trigla gurnardus, July 8, 1885, 



Plate XVII. 



Gadus cegleflnus, larva, 7 days old, with circulation active, April 19, 1886, . 



Motella mustela, advanced larva, May 11, 1886, ...... 



Cyclopterus lurnpus, artificially extruded from the egg-capsule, . . . . 



Undetermined larva, with oil-globule, newly emerged from the ovum figured on Plate V. fig. 



Trigla gurnardus, post-larval stage, August 23, 1886, . 



,, „ post-larval stage, older stage, dorsal view, August 16, 1886, 



„ „ post-larval stage, older stage, side view, August 16, 1886, 



Young Gadus morrhua, June 11, 1886, ...... About 



Larva of Molva vidgaris on the 2nd day, May 8, 1886, 



Larva of „ „ 13 days old, May 13, 1886, 



Post-larval Cottus quadricornis, 



Advanced larval stage of Gadus merlangus, 



Newly-hatched larva of Solea vidgaris, 



Plate XVIII. 



Undetermined Pleuronectid, 24th hour after hatching, April 7, 1887, 



Another undetermined Pleuronectid, 2nd day out (for ovum, vide Plate XIII. fig. 3), 



Post-larval ling {Molva vulgaris), showing long ventral fins, 



Post-larval ling „ „ showing long ventral fins (later stage), 



Post-larval rockling {Motella), showing long ventral fins (later stage). The dorsal fin is 



entered in the text as df, 

 Post-larval rockling {Motella), younger stage than fig. 5, 

 Post-larval " witch " {Pleuronectes cynoglossus), 

 Post-larval "witch" ,, ,, older stage, 



Advanced post-larval stage „ „ . . 



Advanced post-larval stage of armed bullhead {Agonus cataphr actus), April 28, 1887, 

 Late larval stage of the same, April 4, 1887, ..... 



Plate XIX 



Young turbot {Rhombus maximus), August 23, 1886, 

 2. Post-larval stage of Gadus morrhua, in spirit, May 1887, 



The same at a somewhat older stage than fig. 2, 



Young Cottus scorpius, May 6, 1887, 



Larval flounder {Pleuronectes flesus), 1st day out, . 



Post-larval stage of the angler {Lophius piscatorius), 



Larval haddock {Gadus cegleflnus), 1 clay old, ventral aspect, 

 8. Larval cod {Gadus morrhua), 3rd day after hatching, 



(reduced) x 40 



x 40 



x 56 



x 50 



x 15 



Fig. 



1. 



Fig. 



2. 



Fig. 



3. 



Pig- 



4. 



Fig. 



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Fig. 



6. 



Fig. 



7. 



Fig. 



8. 



Pig- 



9. 



Fig. 



10. 



Fig. 



11. 



Fig. 



12. 



Fig. 



13. 



Fig. 



1. 



Fig. 



2. 



Fig. 



3. 



Fig- 



4. 



Fig. 



5. 



Fig. 



6. 



Pig- 



7. 



Fig. 



8. 



Fig. 



9. 



Pig- 



10. 



Fig. 



11. 



Fig. 



1. 



Fig. 



2. 



Fig. 



3. 



Fig- 



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5. 



Fig. 



6. 



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Fig. 



8. 



Magnified 

 Magnified 

 x 18 

 x 50 

 x 18 

 x 40 



x 40 



x 90 



Enlarged 



4, x 40 



x 20 



. Enlarged 



. Enlarged 



natural size 



50 

 80 

 8 

 50 

 52 



x about 75 

 x 40 

 x 5 

 x 5 



6 

 6 

 4 

 5 



5 

 9 



x about 20 



x 

 x 

 x 

 x 

 x 

 x about 



x about 10 

 x 6 

 x 7 

 x 7 

 x 50 

 x 6 

 x 35 

 Slightly larger than natural size 



