100 DEPARTMENT OF THE NAVAL SERVICE 
7 GEORGE V, A. 1917 
Cocconeis scutellum, Khr. Rare. 
ci placentula, Khr. 
Grammatophora serpentina, Ehy. 
Paralia (Melosira) sulcata. 
Nitschia sigma, W.S. 
Rhizosolenia setigera, Br. 
Pleurosigma fasciola, Sm. 
S formosum, W.S. 
Skeletonema costatum, Grev. 
Thalassiosira Nordenskioldu, Cleve. 
Deadman’s Harbour, August 10. 
Chetoceras. Common. 
Ditylum Brightwellii, Grun. Common. 
Asterionella. Very rare. 
Rhizosolenia setigera, Br. 
Skeletonema costata. Common. 
Thalassiosira Nordenskioldii, Cl. 
Tynemouth Creek, St. John County, N.B., August. 
Chetoceras. 
Biddulphia Mobilensis (= B. Baileyi), in great numbers, making up the 
larger part of the plankton. 
Coscinodiscus asteromphalus, Ehr. 
oe radiatus, Ehr. 
Doryphora amphiceros, Kutz. (= Raphoneis). 
Pleurosigma Balticum, Sm. 
Actinoptychus undulatus. 
Rhizosolenia setigera. 
Navicula didyma. 
Narrows of St. John River, New Brunswick, August 10. 
Actinoptychus undulatus, Khr. 
Asterionella. 
Amphiprora ornata, Bail. 
Bacillaria paradoxa, Gmel. 
Coscinodiscus minor, Ehr. 
Doryphora Boecku, W.S. 
Gomphonema. 
Campylodiscus cribrosus, W.S. 
Cocconeis scutellum, Ehr. 
Melosira nummuloides. 
re subflexilis. 
Navicula elliptica, K. 
“ viridis, Kg. 
ovalis, W.S. 
Pleurosigma. 
Synedra salina, W.S. 
Surirella striatula, Turp. 
Tabellaria fenestrata, Kutz. 
Tryblionella. 
Rhoicosphenia curvata, Grun. 
Homecladia sigmoidea, W.S. 
Zygoceros (Biddulphia) Mobilensis, Bail. 
Isthmia enervis, Ehr. 
