Contents. 



Page 



I. Introduction 5 



II. Descriptions: 



1. Leptocephalus Anguillae vulgaris (L. brevirostris) 8 



2. Synapliobianclii pinnati 12 



3. Histiobranchi pinnati (ox Ilyop/iiJis Brunnei) 15 



4. Cyematis atri 16 



5. Congri vulgaris (L. Morrisii) 17 



6. — Congri mystacis 18 



7. Congri balearici 21 



8. — spinocadux n. sp 22 



9. polymerus n. sp 23 



10. Michael-Sarsi n. sp 24 



11. — sp lendens n. sp 24 



12. enchodon n. sp 25 



13. euryurus n. sp 25 



14. similis n. sp 26 



15. proboscideus n. sp 27 



16. dolichorhynchus n. sp 28 



17. stylurus n. sp 29 



18. Saurenclielydis cancrivorae (L. oxyrhynchus) 31 



19. urosema n. sp 32 



20. canaricus n. sp 33 



21. megacara n. sp 33 



22—24. Three very small larvae from the Sargasso Sea 34 



25. Leptocephalus mysticus n. sp 34 



26. — Gastrostomi Bairdii 35 



III. Remarks on the biology 38 



IV. Table of stations, literature, plates 44 



