334 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



primitive position of the Elasmobrancli pectoral fin 

 structures than the latter normally occupy in skates or 

 rays * 



The fish was alive, and apparently in good health 

 when caught. 



6. Flounder (Pleuronectes flesus) showing arrested 

 metamorphosis. 



A flounder caught in a stake net near Piel, Barrow- 

 in-Furness, and sent to me some time ago, exhibits 



Fig. 25. Flounder showing arrested metamorphosis. Nat. size. 

 several characters worthy of record. The fish was 

 pigmented on both sides, and it was this bicolouration — 

 the most perfect I have seen — which caught the attention 



■■- A similar malformation is recorded by R. H. Traquair, Ann. 

 Scottish Nat, Hist, Jan. 190-2, pp. 29-30, 1 fig, in text. 



