116 AMEBICAN HYDEOIDS. 



Plate 7. 



Fig. 1. CampnriMZam ^(XMOsa (Hincks). Colony with expanded hydranths. From living specimen (enlarged). 



2. Campanularia flexuosa. Branch of another specimen with corrugated gonangium (enlarged). 



3. Campanularia flexuosa. Hydrotheca (enlarged). 



4. Campanularia flexuosa. Hydranth (greatly enlarged). 



5. Campanuhna flexuosa. Gonangium, showing ova and planiila (enlarged;. 



6. Campanularia flexuosa. Basal web between tentacles (greatly enlarged.) 



Plate 8. 



Fig. 1. Campanularia neglecla (Alder). Part of colony (enlarged). 



2. Campanularia neglecla. Hydrotheca (enlarged). 



3. Campanularia magniflca Fraser. Part of colony (enlarged). 



4. Campanularia magniflca. Part of another colony (enlarged). 



5. Campanularia speciosa Clark. Hydrotheca (enlarged). 



6. Campanularia exigva (Sars). Part of branch (enlarged). 



7. Campanularia exigua. Hydrotheca (enlarged). 



8. Campanularia exigua. Gonangium (enlarged). 



Plate 9. 



Fig. 1. Campanularia fragilis (Hincks). Branch (enlarged.) 



2. Campanularia calceolifera Hincks. Branch (enlarged). 



3. Campanularia calceolifera. Expanded hydranth (enlarged). 



4. Campanularia calceolifera. Gonangium (enlarged). 



5. Campanularia amphora (L. Agassiz). Branch (enlarged). 



6. Campanularia amphora. Hydrotheca (enlarged). 



7. Campanularia amphora. Gonangium (enlarged). 



Plate 10. 



Fig. 1. Campanularia angulata (Hincks). Branch (enlarged). 



2. Campanularia coronata C'larke. Branch (enlai'ged). 



3, 4. Campanularia coronata. Hydrothecse (enlarged). 



5. Campanularia fusiformis Clark. Part of colony with gonangium (enlarged). 



6. Campanularia lennoxensis Jaderholm. Hydrotheca (enlarged). (After Jaderholm.) 



7. Campanularia lennoxensis. Gonangium (enlarged). (After Jaderholm.) 



Plate 11. 



Fig. 1. Clytia johnstoni (Alder). Hydrotheca (enlarged). 



2. Clytia johnstoni. Gonangium (enlarged). 



3. Clytia johnstoni. Gonangium from an American specimen (enlarged). 



4. Clytia johnstoni. Hydrotheca from an American specimen (enlarged). 



5. Clytia johnstoni. Medusa, oral view (enlarged). 



6. Clytia johnstoni. Medusa, side view (enlarged). 



7. Clytia noUformis (McCrady). Part of colony (enlarged). 



8. Clytia noUformis. Part of another colony (enlarged). 



9. Clytia noUformis. Drawing of "C simplex" (after Congdon). 



10. Clytia noUformis. Drawing of gonangium of " C simplex" Congdon. (After Congdon.) (This is on a much 

 larger scale than fig. 9.) 



Plate" 12. 



Fig. 1. Clytia bicophora Agassiz. Part of colony (enlarged). 



2. Clytia bicophora. Hydranth (enlarged). 



3. Clytia bicophora. Hydrotheca (enlarged). 



4. Clytia longicyatha Allman. Branch (enlarged). (After Allman.) 



6.? Clytia longicyatha. Hydrotheca of a specimen shrunken by alcohol (enlarged). 



6. Clytia cylindrica L. Agassiz. Hydrotheca (enlarged). 



7. Clytia cylindrica. Gonangium (enlarged). 



8. Clytia sargassicola Nutting. Part of colony (enlarged). 



9. Clytia sargassicola. Hydrotheca (enlarged). 



Plate 13. 



Fig. 1. Clytia baheriTorrey. Upper part of colony (enlarged). 



2. Clytia bakeri. Lower part of stem, showing segmentation (enlarged). 



3. Clytia edwardsi (Hutting). Part of colony (enlarged). 



4. Clytia edwai-dsi. Colony, natural size. 



5. Clytia aitenuata Calkins. Part of colony (enlarged). 



