132 



Guide to the Invertehrata. 



GALLERY layer and an outer arenaceous layer of cemented sand-grains 



X. (Fig. 181). 

 Wall-ease 

 9, Table- 

 case 16. 



Fio. 181. — Tj^pes of Foraminifera. a, Cornuspira foliacea ; b, Quinqneloculina 

 seminulum ; c, Peneroplis pertusus ; d, Lituola agglutinans ; e, Trochmmnina 

 pusilla ; /, Lagena sulcata; g, JSfodosaria radicula ; h, Marginulina 

 raphanus ; i, Frondicularia Archiaciana ; j, Polymorphina lactea ; 

 k, Glohigerina buUoides ; I, Textularia sagitlula ; m, CassiduUna Icevigata ; 

 n, BuUmina Buck i ana ; o, Rotalia Beccarii ; p, Truncatulina lobatula ; 

 r, Arch<Bdiscm Karreri ; s, Polystomella crispa ; t, Amphistegina Lessoni. 

 — All the figures are greatly enlarged, the real diameters varying from i^o 

 to ^ inch (H. B. Brady), (Nicholson's Palseontology.) 



