THE FAMILY LITUOLID^ 153 



Example. — W. clavata, Jones and Parker sp. 

 (TrocJiammina), ^ Qua^it. Journ. Geol. Soc' vol. xvi. 

 1860, p. 304; Brady, ' Eep. " Chall." ' vol. ix. 1884, 

 p. 349, pi. xli. figs. 12-16. 



This simply constructed organism is found 

 attached to shells or stones, sometimes at great 

 depths. Parker and Jones record its occurrence in 

 the Mediterranean at depths from 90 to 1,700 

 fathoms. It is also fairly well distributed in the 

 various oceanic deposits. Becent. (Plate 8, fig. G.) 



Suh-family 3. Endothykin.e. 



Test more calcareous and less sandy than in the 

 other groups of the Lituolid.e ; sometimes perforate ; 

 septation usually distinct. 



Genus NodosineUa, Beady, 



Test free, straight, arcuate, or crooked, never 

 spiral ; formed either of a tube constricted at 

 intervals or of a single series of segments variously 

 combined. Test arenaceous, often smooth exter- 

 nally, imperforate, but sometimes having pustulate 

 orifices at various points on the surface. Wall of 

 test thick, with a labyrinthic structure. Aperture 

 variable, simple or compound. Cavhoniferois to 

 JRlicBtic. 



Example. — N. cylindrica, Brady, ' Monograph 

 Carb. and Perm. Foram.' (Pal. Soc), 1876, p. 104, pi. 

 vii. figs. 4-7. 



