AJfD OTHER MEDITEEEAKEAK LOCALITIES. 2 1 



^ig. 10. Menipea BusJcii, W. Thomson. Dorsal surface showing the two 

 small chambers a and b, from which the next zooecium starts. X25. 



11. Scru.pocellaria inermis, Norman. Dorsal surface; transparent pre- 



paration showing the method of articulation, and the position of 

 the polypide in the articulating joint. The vibracular chambers, 

 and the chambers from which the radical starts are also shown. 



12. Do. Anterior surface, showing the position of the polypide at the 



articulation. 



13. Caberea Darwinii, Busk ; Station 135, ' Challenger.' Lateral surface. 



X25. 



14. Sorupocellaria Delilii, And. Dorsal surface. X 25. 



15. Do. Anterior surface. X 25. 



16. Scrupocellaria incurvata, Waters. Anterior surface. X 25. 



17. Do. Dorsal surface. X 25. 



18,19. Scrupocellaria BerthoUetii, Kudi. Fornices from one colony. x25. 



20. Scrupocellaria reptans, L. Fornix. X 50. 



21. Caberea Darwinii, Busk. Operculum. X 85. 



22. Do. Avicularian mandible. X 250. 



23. 24. Do. Ova out of the ovicells. X 85. 

 25. Do. Anterior surface. X 25. 



Plate 2. 



Fig. 1. Beania mirabilis, Johnston; showing the two radical processes, and 

 also the diaphi-agm in the stolon near to the zocecium from which it 

 has arisen. X 25. 



2. Bugula ditrupcs, Busk. Primary zooecium. X 85. 



3. Do. The same, showing the commencement of the colony. X 25. 



4. Btigula calathus, Norm. "Primary" and second zooecium. x 25. 



5. Bugula plumosa, Pallas. Young zooecium from the extremity of a 



long basal process. X 85. 



6. Do. Same colony. X 12, 



7. Do. Process showing first and second zooecium. 



8. Epistomia bursaria, L. Stalk and lower part of colony. X 25. 



9. Do. Origin of stalk from the creeping stolon. X 85. 



10. Btigula calathus, 'Norxna.n. " Primary " zooecium. X 25. 



11. Beania magella?iica, Busk ; showing position of egg-masses. X 25. 



12. Do. Connecting-tube with two septa. X 150. 



13. Do. Egg-mass. X 250. 



14. Do. Avicularia. X 85. 



15. Bugula spicata, Hincks. Mandible. X 250. 



16. Bugula ditrupcs, Busk. Mandible. X 250. 



