350 Notes on New Species 



4. Lat. 0° 32' IF N. Long. 46° 5V 25" W. Same 

 character as above, with some fragments of shells. 



Actinoptychus, large, with 13 rays. Amphora obtecta. 



I conclude the consideration of these forms by giving 

 the contents of a fifth sounding, made by the United 

 States Coast Survey in the Gulf stream. 



Gulf Stream. Position 14. 150 fathoms. 



Green mud. Orbulina universa. 



Polythahimia, abundant, but small. Textilaria, very abundant. 



Coscinodiscus. Marginulina Bachei, small. 



Amphora. Stropliocornus, (common.) 



Triceratium favus. Triloculina. 



" spinosum. Biloculina serrata B.* 



Melosira sulcata. Spines of Echinoderms. 



Fig. E. Biloculina serrata, 5., nov. sp. Perfectly 

 smooth, opaque, porcelaneous, globose, with serrated 

 margin, which is distinct on the under side, and indistinct 

 on the upper. 



Hab. Gulf Stream 150 fathoms. 



Two other forms still remain to be described, which 

 were found in a mass of earth from Honeylake Valley, at 

 the foot of the Sierra Nevada, which was sent to my 

 father by Dr. Stiel. The locality contains the following 

 forms, besides the two new ones described below. 



Epithemia, nov. sp? various forms. Cocconema lanceolatum. 

 Gomphoncma minutissima, abundant. " aspera. 



Stauroneis Baileyii. Cymbella gibba, B.* common. 



Discoplea atmospherica. Campylodiscus, nov. sp"? 



Cocconeis. Tabellaria trinodis. 



Fig. F. Cymatopleura ? Campylodiscus, 5ftj7., nov. sp. 

 Large; lateral view almost circular, sometimes broadly 

 oval ; marginal strife, close, short, and showing, under high 

 ])Owers, marginal gland-like dots. Lateral valve with one 

 deep undulation, and surface faintly striated. 



