SEA-FISHERIES LABORATORY. 



187 



September. 





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43 



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PQ 

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1 



Biddulphia 









+ 

 + 

 + 



* 



+ 

 + 

 + 

 + 





+ 



















Rhizosolenia 



+ 









1 







+ 

 + 



+ 





Coscinodiscus 



+ 







+ 

 + 

 + 

 + 

 + 















Chsetoceros 



















Ceratium tripos 



+ 

 + 

 + 

 + 



+ 

 + 

 + 

 + 















+ 

 + 

 + 

 + 







Ceratium f usus 

















Ceratium f urea 

















Noctiluca 

















Spatangus pluteus 





















Pleurobrachia pileus 



+ 



+ 

 + 

 + 







+ 















+ 

 + 

 + 

 + 





Medusoid gonophores 



+ 

















Sagitta bipunctata 



+ 





+ 

 + 





+ 













+ 





Tomopteris oniscif ormis 















Larval Polychseta 



+ 



+ 







+ 

 + 

 + 













+ 





" Mitraria " 





+ 

 + 

 + 

 + 



















My sis stage of Crangon 



Zoea of Crabs 



+ 



+ 

 + 

 + 















+ 





















Megalopa of Crabs 























Calanus helgolandicus 





















+ 

 + 

 + 





Pseudocalanus elongatus 





























Paracalanus parvus 



+ 

 + 

 + 



+ 



+ 

 + 

 + 

 + 

 + 

 + 

 + 





+ 

 + 

 + 

 + 

 + 

 + 

 + 





+ 

 + 

 + 

 + 













+ 

 + 





Temora longicornis 















Acartia clausi 

















Centropages hamatus 













+ 

 + 







Anomalocera patersoni 

















Labidocera wollastoni 























Oithona similis 



+ 





+ 

 + 



+ 













+ 



+ 





Canuella perplexa 















Euterpina acutifrons 









+ 

 + 





















Hersiliodes littoralis 

























Copepod nauplii 

























+ 

 + 

 + 





Podon intermedium 













+ 

 + 

















Podon leuckartii 



























Eurydice 



+ 

 + 

 + 



+ 























Idotea linearis 





















+ 

 + 



+ 

 + 







Idotea marina 



+ 

 + 

 + 





























+ 





+ 

 + 

 + 

 + 













+ 





Ascidian eggs 

















Young gasteropods 

























Young lamelli branchs 



























































17 



23 



— 



26 



— 



25 



— 



— 



— 



— 



— 



18 



13 



— 



