1 6 HALKYARD, Fossil Foraminifera of the Blue Marl 



These are on his type-slides. The Biarritz specimens are iden- 

 tical with Miliolina angularis Howchin (H. 1889 M.C.V. p. 

 (reprint) 2, pi. I, figs. 1-3) from the Older Tertiary of Australia. 

 The specific name angularis has been used by d'Orbigny for 

 two Miliolids and Howchin's name is therefore somewhat un- 

 happy. As, however, Triloc. angularis d'Orb = M. tricarinata 

 and Q. angularis d'Orb. =M. contorta, and only one subsequent 

 author, viz. Terquem, has employed either name, we think 

 that Howchin's name might be allowed to stand.) 



SUB-FAMILY HAUERININ^. 



Genus Articulina, d'Orbigny. 

 25. Articulina laevigata, Terquem. 



Articulina Iccvigata, Terquem, 1882, Mem. Soc. Geol. France 

 [3], vol. II, p. 151, pi. XV (XXIII), figs. 27-31. 



Very rare, two imperfect specimens found in 1897 Gather- 

 ings. 



(Terquem's species judging from his figures (tit supra) is 

 unsatisfactory, there being no apparent connection between the 

 figure showing a broken series of rectilinear chambers, and the 

 series of abnormal miliolids which are associated with it in the 

 plate. Halkyard's specimens are fragments, each consisting of 

 parts of two chambers of the rectilinear series. In their smooth 

 test they agree with Terquem's definition, but apart from this 

 we should have been inclined to associate them with A. conico- 

 articulata (Batsch.)) 



26. [Articulina sulcata, Reuss.] 



\Articulina sulcata, Reuss, 1849-50, Foram. osterr. Tertiar- 

 beckens. Denkschr, k. Ak. Wiss, Wien, vol- i, (1850), p. 

 383, pi. IV, (XLIX) figs. 13-17.] 



26A. Articulina conico-articulata (Batsch). 



Nautilus (Orthoccras) c onic o-articulatus , Batsch, 1791, Conchyl. 



des Seesandes, p. 3, pi. Ill, fig. 11. 

 Articulina conico-articulata, Brady, 1884, Chall. Rep., p. 185, 



pi. XII, figs. 17, 18, and pi. XIII, figs. 1-2. 



Rare, small, and only found in the immature stage without 

 the linear series of chambers. 



(The two small specimens on which the record rests should 

 in our opinion to be referred to A. sulcata, Reuss.) 



