THE FAMILY LAGENID^ 197 



DiMOEPHOUS GeNEEA. 



Genus Anipliicorijne, Schlumbeegek. 



Early chambers Cristellarian, later ones Noclo- 

 sarian. Recent. 



Example. — A. parasitica, Schlumberger, 'Mem. 

 Soc. Zool. France,' vol. v. 1892, p. 197, pi. viii. figs. 

 10-12. 



This is an intermediate form between CristcJlaria 

 and Dentalina. The commencement of the shell 

 resembles Cristellaria. crepiclida. The original 

 examples were dredged by the Prince of Monaco 

 in the Azores at 71 fathoms. (Plate 10, tig. E.) 



Genus Lingulinopsis, Reuss. 



Early chambers Cristellarian, later ones Lingu- 

 line. 



Example. — L. Ixiheiuica, Reuss ; Reuss's ' Model,' 

 No. 30, 1865. 



A compressed marginuline form with the aperture 

 slitlike and terminal. 



Reuss's specimen came from the Chalk of 

 Bohemia. (Plate 10, tig. S.) 



Genus FlaheUina, D'Oebigny. 



Early chambers Cristellarian, later ones Frondi- 

 cularian. Lia.s to Beceitt. 



Example. — F. I'tigosa, D'Orbigny, ' Mem. Soc. 

 Geol. France,' vol. iv. 1840, p. 23, pi. ii. tigs. 4, 

 5, and 7. 



