SEA-FISHERI¥S LABORATORY. 181 
neritic and oceanic series; but it will be noticed that we 

have not hesitated to query a number of these 
determinations. 
OcEANIC. NERITIC. 

Bacteriastrum  delicatulum,  B. 
elongatum. 
Biddulphia sinensis. 
Chaetoceras boreale, C. convolutum, 
C. criophilum, C. deci- 
piens (?), C. densum. 
Climacodium biconcavum. 
Corethron criophilum. 
Coscinodiscus radiatus (?) 
Rhizosolenia aiata, R. semispina. 
Thalassiosira subtilis. 
Dinophysis sp. 
Peridinium spp. 
Ceratium furca, C. fusus, C. tripos. 
Dictyocha fibula. 
Acanthometron sp. 
Sagitta bipunctata. 
Tomopteris catharina. 
Cupulita sarst. 
Pleurobrachia pileus 

Achnanthes taeniata. 
Asterionella bleakleyi (?), A. japo- 
nica. 
Bacteriastrum varians. 
Bellerochea malleus. 
Biddulphia aurita, B. mobiliensis. 
Cerataulina bergont. 
Chaetoceras anastomosans, C. con- 
strictum, C. contortum, 
C. curvisetum, C. debile, 
C. didymum, C. diadema, 
C. diversum, C. furcella- 
tum, C. laciniosum, C. 
lorenzianum, C. sociale, 
C. subtile, C. teres. 
Coscinodiscus concinnus, C. grant. 
Coscinosira polychorda. 
Ditylium brightwelli (?) 
Eucampia zodiacus. 
Guinardia flaccida (?) 
Hyalodiscus sp. 
Lauderia borealis. 
Leptocylindrus danicus. 
Melosira borreri. 
Nitzschia servata (?) 
Pleurosigma sp. 
Rhizosolenia  setigera, R. shrub- 
solit (2), R. stolterfothi (?). 
Skeletonema costatum. 
Streptotheca tamesis. 
Thalassiosira gravida, T. norden- 
skioldi. 
Thalassiothrix nitzschoides. 
Prorocentrum micans. 
Hexastervas problematica. 
Trochiscia. 
Tintinnopsis sp. 
Noctiluca miliaris. 
Autolytus prolifer. 
