1895.] 



MICROSCOPICAL JOUKI^^AL. 



275 



places and depths of water in Morris Cove, all of which 

 varied greatly in contents, it is probable that many 

 other unfamiliar forms noted are also new. I give a 

 partial list of species found in one sample of the deposit 

 beneath the marsh near Silver Sands. I omit all those 

 of whose determination I feel uncertain and also most 

 of the minute varieties. 



Actiuocyclus barkleyi, Grun. 

 " crassus, Sm. 



" ehrenbergii, Ralfs. 



" triradiatns, Roper. 



Actinoptjchus areolatus, Schm. 



" undulatus, E. 



Aniphiprora conspicua, Grev. 

 " lepidoptera, Greg. 



" palchra, Bail. 



" vitrea, Sm. 



Amphitetras antediluviana, E. 

 Amphora euleinsteinii, (raiiu. 

 " intersecta, A. L. 

 " la; vis, Greg. 

 Auliscus ccelatus, Bail. 

 " pruinosus, Bail. 

 " radiatus, Bail. 

 " sculptus, Ralfs. 

 " macreanus, Grev. 

 Biddulphia aurita, Breb. 

 L-evis, E. 

 " pulchella, Gray. 



" rhombus, Sm. 



Cerataulus ix)lymorphus, E. 



" turgidus, E. 



Carapylodiscus echeneis, E. 

 Coscinodiseus apiculatus, E. 

 " excentricus, E. 



" ooulis iridis, E. 



" radiatus, E. 



" liueatus, E. 



" subtiles, E. 



Coconeis scutellum, E. 

 Cyclotella stj'lorum, Br. 

 Epithemia musculus, K. 

 Melosira borrerei, Grev. 

 " nummuloides, Ag. 



Melosira sculpta, K. 



" sulcata, K. 



" undulata. 

 Navicula brevis, Greg. 



" crucicula, Sm. 



" elliptica, K. 



" formosa, Greg, 



fusea, A. S 



" lyra, E. 



" latissima, Greg. 



" huraerosa, Breb. 



" iuterrupta, K. 



" peregrina, E. 



" pratexta, E. 



'■ pusilla, Sm. 



" sraithii, Breb. 



theta, CI. 

 Nitzsehia, acuminata, Sm. 



" drcumsuta. Bail. 



" scalaris, Sm. 



" sigma, Sm. 



Pleurosigma aflSne, Grun. 

 " balticum, Sm. 



" decorum, Sm. 



" wansbeckii, Douk. 



Podocystis americana, Bail. 

 Pyx ilia baltica, Grun. 

 Raphoneis amphyceros, E. 

 Rhabdonema adriaticum, K. 



" arcuatum. 



Stauroneis aspera, E. 

 Surirella iebegerii, Lewis. 



" gemma, E. 



" striatula, Turpiu. 



" fastuosa, E. 



Triceratium favua, E. 



