PLATE XVIIL 



Fig. 1. Young Flounder (Pleuronectes flesus] taken in Mevagissey Harbour, April 2, 

 1889 ; magnified about 14J times, pv. pelvic fin. 



Fig. 2. Larva of Dab (Pleuronectes limanda) newly hatched, from artificially fertilised 

 egg, March 11, 1889; magnified 35 times, pt. pectoral fin. yk. yolk. 



Fig. 3. Larva of Merry Sole (Pleuronectes microcephalus\ March 25, 1889, four days 

 after hatching, from artificially fertilised egg ; same magnification. I. liver. 

 Jit. heart. 



Fig. 4. Larva of Plaice (Pleuronectes platessa\ February 27, 1889, five days after 

 hatching, from artificially fertilised egg; same magnification, a. anus. 

 nch. notochord. 



Fig. 5. Young Brill (Rhombus Icevis) taken at surface of water in Button Pool, June 1, 

 1889 ; natural size. 



