220 THE FOEAMINIFEEA 



certainly the best known. It is abundant in almost 

 every shore-sand, and is found increasing in rarity 

 down to 3,000 fathoms. 



T. lohatula is often found adherent to marine 

 fragments, and it sometimes covers its test wath 

 a nidus of loosely agglutinated sand ; possibly a tenta- 

 tive experiment in view of becoming an arenaceous 

 foraminifer. Carboniferous to Recent. (Plate 12, 

 figs. G, g.) 



Genus Anonialiiut, Paekee and Jones. 



Characters similar to those of Tnnicatulina, 

 except that the two faces are more nearly alike, the 

 general contour being biconcave or subnautiloid, and 

 the whorls more or less evolute. Lower Cretaceous 

 to Recent. 



Example — A. grosserugosa, Giimbel sp. {Trun- 

 catnlina), ' Abhandl. d. k. bayer. Akad. Wiss.' CI. ii. 

 vol. X. 1868, p. (300, pi. ii. figs. 104 a, I). 



The present example has a stoutly built test, 

 with fewer chambers than in some other species of 

 this genus, and the perforations are very conspicuous. 

 As a fossil its earliest appearance is in the Bargate 

 beds of Surrey. It is w^ell distributed in modern 

 deep-sea deposits, both as to depth and locality. 

 Lotver Cretaceous to Recent. (Plate 12, figs. H, Ji.) 



Genus CaTpenteria, Geay. 



Test adherent, in the smaller forms or young- 

 stage spiral ; convex, monticular, cylindrical, or 



