496 



BULLETIN OF THE BUREAU OF FISHERIES. 



Average Number op Genera and Species op Plants Taken Upon Bottoms of "Gravel and 

 Stones," Division B (167 Stations). 



Groups. 



Genera. 



Species. 





0.09 

 S-6 



0.09 

 i-3 















Average Number op Genera and Species of Plants Taken Upon Bottoms of "Mud," Division 



C (112 Stations). 



Groups. 



Genera. 



Species. 





0.009 



■9 



2.8 







x 





1 















Species Dredged at One-fourth or More of the Stations. 



[The figures at the top of the columns represent one-fourth of the total number of stations in each group.] 



Species. 



Total 

 stations. 



Hawk. 

 Sound. 



Fish 

 Hawk, 

 Bay. 



19 

 Phala- 

 rope, 

 Sound. 



23 

 Phala- 

 rope, 

 Bay. 



43 

 Bottom 



A, 

 "sand." 



42 

 Bottom 



B, 

 " gravel 



and 

 stones." 



28 

 Bottom 



C. 

 "mud." 



Phaeophycese: 









19 



25 

 29 



42 



19 



30 

 27 

 19 

 47 



= 5 

 19 

 26 

 36 



19 











































Rhodophyceae: 









32 





52 

 46 

 67 



55 



















139 



75 





23 



49 









































Cystoclonium purpurascens var. cir- 



















140 



62 



20 



31 



So 



60 

















23 

 38 





59 

 59 









































































44 





Spermatophyta: 































