THE FAMILY LITUOLID.E 159 



Micr. Sci.' vol. xix. N.S. 1879, p. 62 ; ' Eep. " Chall." ' 

 vol, ix. 1884, p. 351, pi. xxxvii. figs. 8-16. 



This is a large compressed form, with slightly 

 sinuous suture lines and rounded peripheral edge. The 

 internal structure of the first chambers is entirely can- 

 cellated. The apertures on the septal face consist of a 

 number of pores communicating with the labyrinthic 

 interior. In recent gatherings this species extends from 

 75 to 2,900 fathoms. Goes found it in the Pacific at 

 depths from 660 to 995 fathoms ; and in the 

 Caribbean Sea from 196 to 1,830 fathoms. Pliocene 

 and Becent. (Plate 8, figs. N, n.) 



Ctenus Loftii.sia, Beady. 



Test of large size, spiral ; elongated in the 

 direction of the axis of convolution ; fusiform or 

 elliptical ; resembling Alveolina in contour. 



Example. — L. 'per^ica^ Carpenter and Brady, 

 'Phil. Trans.' 1869, p. 739, pis. Ixvii.-lxxx. 



There can be little doubt, after a careful 

 examination of the minute structure of this fossil, 

 that we are dealing with a Foraminiferon rather than 

 a Hydrozo(3n. The construction of the test agrees 

 in every way with Alveolina and Fusulina, and the 

 labyrinthic character of its walls proclaims its 

 affinities with Cijclaininina. Tertiari/^ TerHm. (Plate 

 8, figs. 0, o.) 



