331 



LIST OF WOODCUTS IN THE INTRODUCTION. 



No. Page 



i. C.ilycle and polypite of Clytia .... T. H ix 



ii. Thread-cell of Hydra After Mouirs. . xii 



iii. Ditto of Caryophyllia Ditto . . xii 



iv. Calycles of Diphasia, showing the ) T< TT 



operculum | 



v. Pedunculate nematophore T. H xvi 



vi. Neuiatophores of Aglaophenia pluma After ALLMAM xviii 



vii. Ditto of Phtmulariafnetescens T. H xviii 



viii. Gonophore of Coryne After ALLMAN xxii 



ix. Ditto of Aglaophenia pluma . . Ditto . . xxii 



x. Fertile polypite of Podocoryne .... T. H xxiii 



xi. Medusiform zooid T. H xxiv 



xii. Tentacle of the same, with lithocyst T. II xxv 



xiii. Free zooid of Podocoryne, after ] 



the disappearance of the um- I T. H xxviii 



brella j 



xiv. Male capsule of Gonotliyrcea WYVILLE THOMSON xxxvi 



xv. Female capsule of Campamilaria . . Ditto . . xxxviii 



vvi. The planula of Campamilaria Ditto .. xxxix 



xvii. Capsule of Sertularia, with exter- ) T> u .1- 



nal marsupium ( 



LIST OF WOODCUTS IN THE WORK. 



1. Section of the base of Hydractinia . . G. BUSK 21 



2. Lar Sabellarum After GOSSE 35 



3. Coryne vermicularis T. H 44 



4. Coryne ViinBenedetiii. The embryo After VAN BENEDEN 46 



5. Cladonema radiatum. Polypites in ) 77. -ITT TT u 



different conditions ... j K W ' H ' H LDSWORTH G4 



(i. Male gonophore of Eudendrium .... T. H 79 



7. Female ditto ditto T. H 80 



8. Eudendrium rameum. [Frontispiece.] \ m m -r? 



9. Perif/onimus bitenfaciilatus After T. S. WRIGHT 98 



10. P. quadritentaculatus , ditto ditto 99 



11. Bougainvillia, ? species After VAN BENEDEN 113 



12. Vortidara, with young polypite bud- 



ding from the stolon 



13. Gonozooid of Podocoryne arcolaia. ... G. HODGE U5.5 



14. Campanularia a>n/ulata WYVILI.E THOMSON !:!<; 



