PLATE XXIX. 



Fig. 



1. Head of Sthenelais boa, Johnst. Enlarged. 



2. Head of Sthenelais atlantica, Mel. Enlarged. 



3. Head of Sthenelais limicola, Ehlers. Enlarged. 



4. Head of Sthenelais Jeffrey sii, Mel. Enlarged. 



5. Head of Eusthenelais hibemica, Mel. Enlarged. 



6. Head of Sigalion Mathildas, Aud. and Ed. Enlarged. 



7. Head of Sigalion Bushii, McL Enlarged. 



8. Head of Pholoe minuta, Fabr. Enlarged. 



9. Anterior foot (about twelfth) of Lagisca extenuata, Grube. X 24. 



10. Anterior foot of Lagisca floccosa, Sav. ( = propingua, Mgm.). x 24. 



11. Twelfth foot of Lagisca Elisabeths, McL X 40. 



12. Tenth foot of Harmothoe spinifera, Ehlers. x 24. 



13. Anterior foot of Harmothoe Ljungmani, Mgrn. X 28. 



14. Anterior foot of Harmothoe antilopis, McL X 24. 



15. Anterior foot of Harmothoe Fraser-Thomsoni. X 26. 



16. Anterior foot of Harmothoe marphysse, McL X 40. 



17. Anterior foot of a large example of Polynoe scolopendrina, Sav., from North 



Uist. x 15. 



