Manchester Memoirs, Vol. xlviii. (1904), No. 5. 17 



that they should be placed under A. conico-articulata^ 

 but the milioline commencement is very much larger than 

 in any I have seen of this species, and as this commence- 

 ment appears to be a facsimile of Brady's figures I 

 have put them under A. sulcata. 



Milioline part common, with chamber added very rare. 



Articulina sagra, d'Qrbigny. (PI. 4, figs. 18-20; 

 Section 6.) 



^^a> 



No. 6. Articulina sagra, d'Orb. x 75. 

 Transverse section of the test. 



Articulina sagra, d'Orbigny ('39), p. 183, pi. 9, figs. 

 23-26. 



A. sagra (d'Orb.), Brady ('84), p. 184, pi. 12, figs. 22-24. 



The milioline commencement in the Delos forms is 

 nearly always more or less keeled and only a few of the 

 specimens have one lineal chamber added. 



Looking at the whole of the Delos specimens together, 

 viz., A. sulcata and A. sagra, it seems to me that they 

 could very well be placed under the latter name. Only 

 two large ones were found. (PI. 4, fig. 18.) Frequent. 



Articulina lineata, Brady. (PI. 5, fig. i.)| 



Articulina lineata, Brady ('84), p. 183, pi. 12, figs. 19-21. 



Brady speaks of this as being a rare species, about 

 twenty have been found in the Delos material. In two 

 cases the added chamber is smooth. Rare. 



