PLATE XIX. 



Fig. 1. Newly hatched larval Pilchard, Glupea pilchardus. Y. Eaffaele. 



2. Larval Herring, Clupea harengus, bottom stage. A. T. M. 



3. Late larval ditto, bottom stage. A. T. M. 



4. Post-larval ditto, mid-water and surface-stage. A. T. M. 



5. Young ditto, Httoral stage. A. T. M. 



6. Young Conger, Leptocephalus morrisii. 1869, St Andrews. 



A. T. M. 



7. Early post-larval Sprat, 4-7 mm. 15th July. E. Ehrenbaum. 



8. Later post-larval ditto, 18-5 mm. 18th July. E. Ehrenbaum. 



9. View of the anterior end of mursenoid (?), species no. 6, Raffaele, 



4 days after hatching. Naples. H. C. Williamson. 



