20 DEPARTMENT OF THE NAVAL SERVICE 
7 GEORGE V, A. 1917 
Chaetoceras decipiens Cleve. 
C. dichaeta. 
C. eriophyllum Cast. 
Rhizosolenia styliformis Bright. 
Coscinodiscus concinnus W. Sm. 
Cocconeis scutellum Ehr. 
Nitzschia longissima (Breb) Ralfs. 
Paralia sulcata (Ehr) Cleve. 
Along with these were the following named infusorians and crustaceans: — 
Ceratium tripos Nitsch. 
Amphorella subulata (Ehr) Dad. 
Distephanus speculum (Ehr) Haeckel. 
Ceratium fusus. 
Tintinnopsis campanula (Ehr) Dad. 
Calanus finmarchicus Gunner. 
Podon intermedius Lill. 
For verification of the determinations of several species, and for the identifica-— 
tion of others, the writer is under special obligation to Dr. Albert Mann, of the 
United States National Herbarium, and to Dr. A. H. MacKay, Superintendent of 
Education, Halifax. 
