, LIST OF ILLUSTRATIONS US THE TEXT. 



Fig. 1. Tullbergella cuspidata, from the side, c. (Drawn by the author) p. 20. 



2. Xiphoceplialus armatus, tf. 



3. Stebbingella Theeli, above, 5. 21. 



4. Oxyceplialus Clausi, the side, . A. M. Westergren) 



5. Cranoceplialus Goesi, above, cJ. the author) ,, 



6. The head of Glossoceplialus Milne-Edwardsi, 



from the side, 22. 



6 a. The same from above 



7. The head of Oxycephalus Clausi, from above $. (Drawn by A.M. Westergren) 



8f-> 

 ,, )) V* v 



9. Streetsia pronofdes, 9. the author) 23. 



J; 10. Leptocotis spmifera, 9. (Facsimile from Streets, 26) 



,,11. Calamorhynclms pel- 



inciduS) ^. j, 



,,12. ,, ,, ,, Tullbergella CUSpidata, 5. (Drawn by the author) 



13 and 14. Eye-elements of Xiphocephalus Whitei. A. M. Westergren) 24. 



15. A piece of the surface of the eye of the same 



animal. 



16 and 17. Hexagonal facets from the surface of 



the eye of the same. 



18. The first pair of antennse of Tullbergella cuspi- 



data, c?- 



19. Oxycephalus pecti- 



natus, cJ. 



20. The last flagellar joints in the first pair of 



antennae of Streetsia Steenstnipi, c?- 



21. The first pair of antennae of Oxycephalus pecti- 



natus, young c?. 



22. Oxycephalus Clausi, 



young cJ. 



