PLATE LXIL 



Fig. 



1. Dental apparatus of Lumbriconereis fragilis, 0. F. M., viewed from above. X about 14. 

 la. Mandibles. X about 14. 



2. Mandibles of Lumbriconereis impatiens, Clap. X 35. 



3. Head of Lumbriconereis hibemica, n.s., twenty-five miles off the Blasquet. Enlarged. 

 3a. Proboscis extruded. Enlarged. 



4. Head of Lumbriconereis gracilis, Grube, from the dorsum. From Loch Slyne, Co. 



Cork. Enlarged. 

 4a. Armature of the proboscis as extruded. X 41 . 



5. Head of Lumbriconereis G. Enlarged. 



6. Head of Zy globus laurentianus, Grube. Enlarged. 

 6a. Dental apparatus. x about 50. 



66. Mandibles, x about 50. 



7. Head of Drilonereis JElisabethse, n.s., with the proboscis partly protruded. From the 



stomach of a haddock, St. Andrews. Enlarged. 

 7a. Dental apparatus. X 20. 

 7b. Mandibles of the same. X Zeiss oc. 2, obj. A. 



8. Ventral surface of the head of Arabella tricolor , Mont., from Gruernsey. Enlarged. 

 8a. Dental apparatus. X 20. 



Sb. One side of the same in another example. X about 40. 

 8c. Mandibles. X about 25. 



9. Notocirrus scotieus, McL, from the dorsum. From Lochmaddy. Enlarged. 



9a. Dental apparatus drawn from an example from the Isle of Man, off Peel. The 

 anterior fang of the maxillary plates (second from rear) was broken off. X 50. 



9b, Mandibles of the same. X 50. 

 10. Dental apparatus of Eunice Harassii, Aud. and Ed. x 30. 

 10a. Mandibles of the same. X 30. 



