186 



TBANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



August. 





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Biddulphia 







+ 

 + 

 + 

 + 























Pvhizosolenia 

























+ 

 + 





Coscinodiscus 





+ 























Chastoceros 























Gelatinous algae 

























+ 

 + 

 + 

 + 





Ceratium tripos 





+ 

 + 

 + 

 + 



+ 



+ 

 + 

 + 

 + 

















+ 





Ceratium f usus 





















Ceratium f urea 



















+ 





Noctiluca 



+ 

 + 

 + 

 + 





+ 















Pleurobrachia pileus 













+ 







Medusoid gonophores 



























Sagitta bipunctata 



+ 





+ 

 + 

 + 

 + 

 + 

 + 

 + 





+ 

 + 















+ 





Autolytus prolifer 













+ 

 + 





Larval Polychata 









+ 

 + 















" Mitraria " 





+ 

 + 

 + 

 + 



+ 

 + 



+ 

 + 



+ 

 + 

 + 

 + 

 + 

 + 















Mysis stage of Crangon 













+ 

 + 

 + 







Zoea of Crabs 



















Megalopa of Crabs 















+ 





Erichtheus stage of Squilla . . . 

















Trachelifer stage of Jaxea ... 























+ 

 + 







Pelagic stage of Lobster 











+ 

















Calanus helgolandicus 













+ 















Pseudocalanus elongatus 

























+ 





Paracalanus parvus 



+ 







+ 

 + 

 + 



+ 



+ 

 + 

 + 

 + 

 + 



+ 

 + 

 + 

 + 



+ 

 + 

 + 











+ 

 + 

 + 





Temora longicornis 



+ 

 + 

 + 



+ 











+ 

 + 

































Centropages hamatus 



+ 



+ 



+ 



+ 



+ 



+ 

 + 











+ 





















uwiuiuuagw t^jnuua 



Isias clavipes 































+ 







+ 



































































Parapontella brevicornis 

 Oithona similis 













+ 

 + 

























+ 



+ 













+ 













+ 

















Alteutha interrupta 









+ 













































Copepod nauplii 



























+ 



+ 





Podon intermedium 





+ 

 + 

 + 









+ 

 + 



+ 

 + 











+ 



+ 

 + 





Podon leuckartii 









































Idotea marina 



























Oikopleura 





+ 

 + 









+ 

 + 













+ 





Ascidian eggs 















































+ 



17 







6 



19 



5 



20 



6 



25 



15 



— 



— 



— 



— 



18 







