298 FORAMINIFERA OF THE CRAG. 



Characters. — Test compressed, flat or concavo-convex ; periphery somewhat 

 square; sutures more or less limbate on the aboral (" superior ") face, and having 

 interlocking angles on the oral face. The aboral surface of several of the chambers 

 ornamented with a slightly raised boss. 



We think Brady mistaken in admitting fig, 3 on pi. xci of the ' Challenger ' 

 Report as D. hiconcava, P. and J. It has limbate sutures upon one side only, is 

 not biconcave, and has not a square limbate periphery. The aboral face (fig. 3 a) 

 is stinkingly like our fig. 33 a, PI. VII, and also like our specimens from the 

 Miocene of Muddy Creek (Victoria). 



Occurrence. — The figured specimen is from the Coralline Crag of Sutton, zone f ; 

 and, as mentioned above, we have specimens from the Miocene of Australia 

 exactly corresponding with the specimen from the Crag. 



Genus 2. — Planorbulina, d'Orbigny, 1826. 



Carpenter, Parker, and Jones, Introd. Foram., 1862,^. 206; Brady, Ile^Jort 

 ' Challenger,' 1884, p|?. 627, 655, 656. 



Planobbulina, emended by Carpenter, Parker, and Jones, comprised Planorbulina, 

 Truncatulina, Anomalina, Siphoni7ia, and Planulina of auttiors. 



Plaxorbtjlina, (POrhigny, Bronn, von Miinsfer, Bomer, von Hagenow, von Eeuss, 

 Costa, Williamson, Parker and Jones, Carpenter, Karrer, Brady, 

 M. Sars, Fischer, Schulze, Terquem, von Zittel, Schwager, 

 Biltschli, Terrigi, Quenstedt, Basset, Carter, Fornasini, Millett, 

 Egger, Goes, Balkwill and Wright, and others. 



General Characters. — Test usually adherent; flattened; chambers numerous, 

 at first spiral, then cyclical, sometimes irregular and acervuliue ; apertiires opening 

 on the periphery and lipped. Shell-wall coarsely perforate. 



1. Planorbulina Mediterranensis (d'Orbigny), 1826. Plate II, tig. 3 ; Plate V, 



fig. 30. 

 Parti, 1866, Appendices I and II, Tables, No. 78. 



Corpuscula p/anO'papillosa, Soldani, 1795. Testaceographia, vol. i, pt. iii, p. 238, 



pi. 161, figs. E, F, G ; pi. 162, fig. H. 

 Planorbulina Meoiteiu!anen8Is, d'Orbigny, 1826. Ann. Sci. Nat., vol. \ii, 



p. 280, No. 2, pi. xi7, figs, i— 6 bis ; 

 Modele, No. 79. 

 DiFFOHMis, Homer, 1838. Neues Jahrb. fiir Min., p. 390, pi. iii, 

 fig. 59. 



