COîsTEîsTS. 



Introduction p. 1 . 



I. Historical notes on the Oxycephalids. 



Bibliography » 2. 



II. The systematical position of the Oxycephalids. 



Ciiaractc'iistios tor tiic distinction of tiie subtribes of tiie Ani- 



phijjoda Hypcriidea ^ 14. 



Character!. sties for the distinction of tiie families of the Hypc- 

 riidea cui'vicornia ■■> 15. 



Charactcri.stics for the distinction of the genera and species among 



the O.xycephalids » 16. 



Synoptical table of the families of the Amphipoda Hyperiidea . » 17. 



III. Morphological notes on the Oxycephalids. 



1 . The shape of tlie body » 20. 



2 The integument » 21. 



3. The head » 22. 



4. The eyes » 2.3. 



5. The first ])air of antennœ » 24. 



6. The second pair of antennje » 26. 



7. The mouth-organs » 28. 



8. The pera'on and its appendages » 30. 



9. The pleon and its appendages » 36. 



10. The urus and its appendages » 37. 



11. The nervous SN'stem » 41. 



12. The glands . " » 41. 



13. The young » 43. 



lY. The Oxycephalidean genera and species. 



The family U.xycephalidte > 45. 



Synoptical table of the genera » 46. 



1. Simorhyuchotus » 47. 



S. antennarius » 49. 



S. Stebbingi » 50. 



S. Lilljcborgi » 52. 



2. O.xycephalus » 54. 



O. piscator > 56. 



O. Clausi >, 60. 



