PLATE XIX. 



Fig. 1. Newly hatched larval Pilchard, Clupea pilchardus. F. Raffaele. 



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, littoral 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 mimenoid (?), species no. 6, Raffaele, 



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



