o HALKYARD, Fossil Foraminifera of the Blue Marl 



341. Orbitoides (Discocyclina) dispansa, (Sowerby.) 

 Lvcophris dispansus, Sowerby, 1837, (1840), Trans Geol. Soc. 



Lond [2], vol. V, p. 327. P- 7i8, pi. XAIV, hg. 16. 

 Orbitoides (Discocyclina) dispansa Gumbel, 1868 (i8;o), Abh. 



m.-ph. CI. k-bayer, Ak. Wiss. X, p. 701, pi. Ill, figs. 40-47. 



Rare on the Cote des Basques. In the bed of the Chabiague 

 Brook which is outside the limits from which the collections 

 now under description were taken, there are horizontal layers 

 of indurated Marls containing large quantities of Orbitoides 

 dispansa. These layers appear to be the lowest of the Blue 

 Marls. At any rate they are the lowest in sight. 



342. Orbitoides (Asterocyclina) stellata, (d'Archiac.) 

 Calcarina stellata, d.'Archiac, 1846, Mem. Soc. Geol. France, 



[2], vol. II, p. 199, pl- VII, fig. 1. 

 Orbitoides (Asterocyclina) stellata, Gumbel, 1868 (1870), Abh. 



m.-ph. CI. k.-bayer, Ak. Wiss., vol. X, p. 713, pl. II, fig. 



115; and pl. IV, figs. 4-7. 



Generally distributed but rather rare. 



343. Orbitoides (Asterocyclina) stella, Gumbel. 



Orbitoides (Asterocyclina.) stella, Gumbel, 1868 (1870), Abh., 

 m.-ph. CI. k.-bayer. Ak. Wiss vol. X, p. 716, pl. II, fig. 

 117; and pl. IV, figs. 8-10, 19. 

 Rare, and only found in two Gatherings. 



344. Orbitoides (Aktinocyclina) radians (d'Archiac). 

 Orbitolites radians, d'Archiac, 1848, Mem. Soc. Geol., France. 



[2], vol. Ill, p. 405, pl. VIII, fig. 15. o£o fo 



Orbitoides (Aktinocyclina) radians, Gumbel, 1868 (1870), 



Abh. m. ph., CI. k.-bayer, Ak. Wiss. vol. X, p. 707, pl. II. 



fig. 116; and pl. IV, figs. 11-15. 



Very rare. In the whole of my collections only one speci- 

 men was found, that occurring in No. 3a Gathering of No. 2 

 series. 



345. Orbitoides (Aktinocyclina) tenuicostata, Gumbel. 

 Orbitoides (Aktinocyclina) tenuicostata, Gumbel, 1868, (1870), 



Abh. m.ph. CI. k.-bayer. Ak. Wiss., vol. X, pl. U. fi S- 

 114; and pl. IV, fig. 35. 



Rare in sandy pockets in the softer Marls. 



