FOBAMINIFEEA OF NOETH PACIFIC OCEAN. 129 



Distribution. — Specimens referred to this species have been obtained 

 at seven stations in the North Pacific; Albatross stations H2986 in 

 271 fathoms and H3012 in 2,067 fathoms, both near the Hawaiian 

 Islands; and at several Nero stations near Midway Island, near 

 Luzon and between Yokohama and Guam in 1,406-2,135 fathoms. 



The structural characters of this species will not allow of its being 

 placed in any of the genera used here in a re- 

 stricted sense and it has seemed best to make 

 a new genus for it. 



Subfamily 4. NEUSININ^. 



Test arenaceous with some chitin, flattened 

 and broad, composed of many chambers, early 

 portion coiled with the later chambers broad 

 and spreading, sides with elongate chitinous 

 filaments. fig. 202.— ammosph,eroimna 



This subfamily containing the single species, sphjeroidiniformis. x 25. 



,, . ....,.«.'., ,, . FROM PHOTOGRAPH. 



Neusma agassizii, is different from the other 



arenaceous Foraminifera but in its general plan of structure is not 



unlike certain other genera. 



Genus NEUSINA Goes, 1892. 



Neusina Goes (typo, Neusina agassizii Goes), Bull. Mus. Oomp. Zool., vol. 23, 

 1892, p. 195. 



Description. — Test expanded, flat, made up of a series of very broad, 

 low, flattened chambers, early ones in complete specimens apparently 

 coiled, later ones in a broad, flat expanse of varying shape; wall are- 

 naceous or of fine mud and sand with a chitinous network, flexible 

 with a thread-like border of chitin; apertures numerous, along the 

 edge of the chamber; color in fresh specimens brown. 



NEUSINA AGASSIZII Goes. 



Neusina agassizii Goes, Bull. Mus. Comp. Zool., vol. 23, 1892, p. 195, pi., figs. 1-9. 



Description. — Similar to that of the genus, simply the one species 

 being known. 



Diameter in largest specimen, 190 mm. 



Distribution. — Specimens of this species were found in material 

 from a single Albatross station, D3399, off the northwest coast of 

 South America in 1,740 fathoms in olive green ooze. 

 16777— Bull. 71—10 9 





