176 



TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



The following tables show the occurrence from month 

 to month of the various organisms identified in the 

 plankton collected from the areas named in 1906 : — 



January. 





o 



o 

 ft 



M 

 o 



cS 



s 



5h 





o ^ 



a 

 p 



3 



3 e3 



<p 



3 



.3 a 



32 



<D 



O 



J2 • 

 CO 1-1 



ss 6 



5 

 ? 

 o 



*i 6 



CO 



© 



S 



ie 6 



a . 





 



P 



3 



C 



'5 

 H 



o 

 Pn 



PQ 



0) 



w 



3 



Biddulphia mobiliensis 







+ 



+ 





+ 















+ 

 + 

 + 

 + 

 + 

 + 





Chsetoceros contortum 





















Chsetoceros criopliilum 

























































Chsetoceros teres 

































+ ~ 



+ 



+ 

 + 



+ 



+ 



+ 





















Rhizosolenia semispina 



Rhizosolenia setigera 



+ 







































+ 





Rhizosolenia shrubsolei . . . 



+ 

 + 

 + 



+ 

 + 

 + 

























+ 

 + 



















+ 

 + 

 + 









+ 

















Acanthometra sp 



















+ 



+ 

 + 



+ 



+ 

 + 



+ 

 + 

 + 

 + 

 + 























+ 

 + 



+ 

 + 

 + 

 + 









+ 



+ 

 + 













+ 













+ 



































+ 

 + 

 + 











+ 



























+ 









+ 

 + 

 + 

 + 





































































+ 



+ 

 + 

 + 

 + 

 + 

 + 







































































































































































+ 



+ 









+ 

















+ 

 + 

 + 

 + 

 + 

 + 



























+ 

 + 

 + 

 + 

 + 

 + 

 + 









+ 

 + 

 + 

 + 







+ 

 + 

 + 





Pseudocalanus elongatus 

 Paracalanus parvus 



+ 

 + 

 + 



+ 



+ 



+ 

 + 

 + 

 + 



+ 

 + 

 + 



+ 

 + 







































Centropages hamatus 



































+ 

 + 

 + 



+ 

 + 

 + 



+ 

 + 



+ 

 + 

 + 

 + 

 + 

 + 















+ 



+ 



























































+ 



+ 

 + 

 + 















+ 























+ 









+ 







































































+ 

 + 









+ 

































































13 



11 



19 



26 



8 



18 



— 



— 



— 



14 



— 



— 



24 



— 



