2G4 



INDEX. 



Spongilla canuliurn 



Page 



160 



Tiiplia 



Page 149 



fluviatilis 





J59 



aurea 



- 



131 



fluviatilis 





160 



coalita 



- 



135 



friabilis 





159 



conica 



. 



132 



lacustris 





162 



dichotoma 



. 



94 



lacustris 





160 



digitata 



- 



96 



pulvinata 





160 



hispida 



- 



98 



ramosa 



. 



160 



lobata 



. 



168 









oculata 



_ 



94 



Tethea 





81 



perlevis 



- 



133 



cranium 



. 



83 



ramosa 



. 



99 



Lyncurium 



85, 



195 



rigida 



- 



132 



Tethia cranium 



- 



85 



stuposa 



- 



96 



Tethya lacunata 



- 



87 









penicilliformis 



143 



Ulva squamaria 



- 



237 



pilosa 



- 



83 









sphcBrica 



- 



85 



Zonaria deusta 



- 



237 



verrucosa 



- 



85 









PRINTED BY JOHN STARK, 

 OLD ASSEMBLY CLOSE, EDINBURGH 



