56 CARBONIFEROUS AND PERMIAN FORAMINIFERA. 



8. DESCRIPTION OF GENERA AND SPECIES. 



SUB-KINGDOM, PROTOZOA. 



Class, RHIZOPODA. 



Order, RETICULARIA. 



(FORAMINIFERA.) 



SUB-ORDER, IMPERFORATA. 



Family, LITUOLIDA, Carpenter. 



Genus, SACCAMMINA, Sars. 



NODOSARIA (?), M'Coy. 



SACCAMMINA, Sars, Carpenter, Brady, Etheridge, J. Young, Lebour, Bennie, Rupert Jones. 



CARTERIA, Brady. 



General Characters. Test free ; consisting either of a single subglobular or pyriform 

 chamber with central, pouting aperture, or a number of fusiform segments joined end 

 to end. Texture arenaceous, compact, smooth externally, or nearly so, more or less 

 rugose or labyrinthic on the interior surface. 



Professor Sars, in his paper on the results of deep-water dredging on the coast of 

 Norway, 1 records the occurrence of a monothalamous Foraminifer, previously undescribed, 

 to which he gives the name Saccammina sphcerica, regarding it as the representative 

 species of a new genus. No description, generic or specific, is given in the memoir 

 referred to, nor indeed any further particulars respecting the organism, except that it was 



1 " Fortsatte Bemserkninger over det dyriske Livs Udbredning i Havets Dybder," in the ' Vidensk.- 

 Selsk. Forhandlinger,' for 1868, p. 248. 



