PLATE V. 



STNAPTIN^I. 



Figures 1-13 and 22. Leptosynapia acanthia (Clark). Except Fig. 22, from Clark, 1899a. 



Figure 1. Large anchor. X 90. 



2. Large anchor-plate. X 90. 



3. Small anchor. X 90. 



4. Small anchor-plate. X 90. 



5. Abnormal anchor. X 90. 



6. Double plate with twin anchors. X 90. 



7. Miliary granules from anterior part of body. X 450. 



8. Miliary granules from posterior part of body. X 450. 



9. Supporting rods from tentacles. X 450. 



10. Interradial and radial pieces of calcareous ring. X 10. 



11. Small ciliated funnel from body-cavity. X 90. 



12. Large ciliated funnel from body-cavity. X 90. 



13. Part of body laid open to show stomach and line of ciliated funnels. Natural 



size. 



22. Gustatory organs on tentacles, a. Group of 5, seen from above. &. One, seen 

 from side. X 70. 



Figures 14, 18, 19, and 20. Leptosynapta inharens (0. F. Miiller). (From Clark, 1899&.) 



Figure 14. Radial and interradial pieces of calcareous ring. X 45. 



18. Supporting rods from tentacles. X 450. 



19. Miliary granules from longitudinal muscles. X 450. 



20. Large ciliated funnel from body-cavity. X 125. 



Figures 15, 16, 17, and 21. Leptosynapta roseola Verrill. (From Clark, 18996.) 



Figure 15. Supporting rods from tentacles. X 450. 



16. Radial and interradial pieces of calcareous ring. X 45. 



17. Miliary granules from longitudinal muscles. X450. 



21. Large ciliated funnel from body-cavity. X 337. 



Figure 23. Anchor-plate of Labidoplax buskii (Mclntosh). (From Brady and Robertson, 

 1871.) 



24. Anchor-plate of Euapta gldbra (Semper). X 95. (From Semper, 1868.) 



25. Anchor-plate of Labidoplax dubia (Semper). X 95. (From Semper, 1868.) 



26. Anchor-plate of Protankyra challenge (Theel). X 170 ? (From Theel, 1886a.) 



27. Anchor-plate of Labidoplax sluiteri Fisher. X 100 ? (From Sluiter, 1901.) 



28. Anchor-plate of Labidoplax dubia (Semper). X 200 ? (From Theel, 1886a; 



incerta.) 



29. Anchor of Protankyra verrilli (Th6el). X HO ? (From Theel, 1886a.) 



30. Miliary granules of Protankyra bidentata (W. and B.). (a. From Theel, 1886a; 



distincta. X 400 ? &. From Semper, 1868; moJesta. X 95. c. From Lud- 

 wig, 1875; distincta. X 70.) 



31. Anchor of Protankyra autopista (v. Mar.). X 150. (From v. Marenzeller, 1881.) 



32. Anchor of Protankyra insolens (Theel). X 50 ? (From Theel, 1886a.) 



33. Anchor-plate of Protankyra rodea (Sluiter). X 25. (From Sluiter, 1890.) 



34. Accessory perforated plate of Protankyra ludwigii (Sluiter). X 300. (From 



Sluiter, 1890.) 



35. Accessory perforated plate of Protankyra asymmetrica (Ludwig). X 180. (From 



Ludwig, 1875.) 



36. Anchor of Protankyra asymmetrica (Ludwig). X 70. (From Ludwig, 1875.) 

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