32 Messrs. Parker, Jones, and Brady on the 



Model no. 80. Operculina complanata *, Defrance. 

 Page 281, uo. 1, pi. 14. figs. 7-10. 



Hab. Fossil, Bordeaux. PI. III. fig. 93. 

 Subtype of Nummulina. 



Model no. 81. Vertebralina striata^, D'Orb. Page 283, no. 1. 



Hab. Mediterranean ; Red Sea ; South Sea, near Rawack. 

 PI. I. fig. 1. 



The robust, compressed, typical form. See also note on 

 Model no. 22. 



Model no. 82. Robulina cultrata'^, Montfort. Page 287, no. 1. 



Hab. Adriatic ; and fossil near Vienna, PI. I. fig. 39. 



There seems no necessity for Robulina as a generic term ; and 

 it would be impossible to carry out even the conventional dis- 

 tinction, depending upon the degree of curvature and minute 

 differences in the position of the terminal orifice, laid down by 

 D'Orbigny in separating it from Cristellaria. Cristellaria cul- 

 trata is a good subspecific name for those carinate varieties of the 

 subtype, Cristellaria Calcar, Linn., which are without spinous 



Model no. 83. Cristellaria Cassis^, F. & M. Page 290, no. 3. 



Hab. Adriatic, near Rimini; fossil near Sienna. PL I. fig. 44. 

 The adult shell. The young form is given in Model no. 44. 



Model no. 84. Cristellaria costata, D'Orb. Page 292, no. 10. 



Hab. Adriatic, near Rimini. PI. I. fig. 46. 

 A thin, elongated, carinate Cristellaria, with parallel costse 

 over the body of the shell. 



Model no. 85. Cristellaria [Saracenaria) Italica*, Defr. 

 Page 293, no. 26. 

 Hab. Adriatic, near Rimini; and fossil near Sienna. PI. I. 

 fig. 41. 



A trihedral keelless variety of Cristellaria Calcar. Model 

 no. 19 shows the young condition of the same variety. 



Model no. 86. Nonionina umbilicata^, D'Orb. Page 293, no. 5, 

 pi. 15. figs. 10-12. 



Hab. Adriatic, near Rimini ; Mediterranean ; and fossil near 

 Bordeaux and Sienna. PI. III. fig. 98. 



A variety of Nonionina asterizans, F. & M., sp., scarcely dis- 

 tinguishable from N. pompilioides of the same authors. 



