LIST OF THE WOOD-CUTS. 



XI 



a 



Profile vit'w, soiiu'wluit magnified, of Halopsis CRUCIATA . 

 Natural attitude of the same Meilusa (Fij^. 151) .... 

 Abactinal view of Zygodactyla guokxlaxdica 



Profile view of Fig. 153, half natural size 



Portion of the circular tube ........ 



Young Zygodactyla, greatly magnified 



l*n)lile view of Zygod.vctyla cuassa, somewhat reduced in size 

 (Quarter-disk of Zygodactyla crassa ....... 



Portion of the disk of Zygodactyla cyaxea, from the abactinal pol 

 Ci{km.\tostoma flava, in profile ..... 



Portion of the disk of iEquoREA albida, I'rom the abactinal i)ol 

 A natural attitude of .iEquorea albida ..... 



Magnified view of the marginal tube ..... 



KiuKXK CCEUULEA. (L. Agassiz.) ..... 



TiM.\ FORMOSA, half natural size 



(Quarter of the disk, from the abactinal pole, natural size 



Digestive cavity and actinostome 



Portion of the ovary ........ 



Magnified portion of the circular tube .... 



Young Tima formosa, natural size ...... 



Digestive cavity of Fig. 169 . 



Young Planulic of Tima 



Single Hydra of the tuft of a Tima Ilydrarium, greatly magnifies 

 Profile of EuTiJiA limpida, reduced in size 



Quarter-disk of Fig. 1 73 



Magnified view of proboscis and genital organs ... 



Magnified portion of a part of the circular canal 



Magnified marginal capsule . ...... 



Magnified view of the rudimentary tentacles .... 



Profile view, somewhat magnified, of Polyorchis penicillata 

 Ovaries of one of the chymiferous tubes ..... 



Section of bell 



Part of disk of Fig. 179, seen from the abactinal pole 

 Two of the marginal tentacles in a contracted state 

 Adult Medusa of Lafcea calcarata .... 



One of the ovaries and the actinostome .... 



Actinostome, actinal view ...... 



Magnified view of a portion of the circular tube . 

 Actinostome and rudimentary ovaries, seen in profile 

 Different attitude of Medusa of Fig. 184 .... 



Hydrarium of Lafcea calcarata. ..... 



Reproductive calycle ........ 



^ledusa immediately after its escape from the reproductive calycle 

 Medusa somewhat more advanced, from the abactinal pole . 

 Young Medusa still further advanced than Fig. 193. 



Laodicea cellularia 



One of the lips of the actinostome 



GoNiONEMUs vertens, attached by its tentacles 



The same in motion, natural size 



Base of a contracted tentacle 



A portion of the genital organs ..... 



One of the chymiferous tubes and half the digestive cavity . 



Profile of Melicertum campanula, natural size . 



Profile view of a very young Melicertum campanula . 



Half the disk of the same, seen from the actinal pole 



Young Melicertum, having only four completely formed chymiferous tubes 



Same, seen from the abactinal pole 



Magnified view of the two chymiferous tubes and genital glands 

 Mode of carrying the lips of actinostome 



Ag.) 



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11.-} 



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