118 FORAMINFFERA OF THE CRAG. 



varieties: — sca/pha, d'Orb. ; triangularis, d'O rb. ; trigonula, Lamarck; agglutinans, 

 d'Orb. ; pulchella, d'Orb.; Brongniartii, d'Orb. At pages 124 — 130 he groups 

 numerous forms of the above (shown in his plates xi and xii) by the chief 

 external characters. 



In 1894, in the same Swedish Academy Transactions, vol. xxiv, Dr. Goes 

 treats of Miliolina seminulum and its allies at pages 108 — 112. 



It is not necessary here to add to the description of this Foraminifer given 

 by Parker and Jones in the ' Annals and Mag. Nat. Hist.,' ser. 2, vol. xix, 1857, 

 p. 300; and by Williamson, ' Recent Brit. Foram.,' 1858, pp. 85—87, or to the 

 remarks already made in Part I, 1866, and by Goes in 1882, and Brady in 1884. 

 The additional synonyms above quoted show how frequently this Foraminifer has 

 been met with and more or less studied by naturalists. 



Occurrence. — Miliolina seminulum has a world-wide range, and occurs at all 

 depths to 3000 fathoms. Geologically it occurs in every deposit from the Lower 

 Eocene upwards. 



2. Miliolina triangularis (d'Orbigny). Plate IV, fig. 1; Plate VI, figs. 2 a, 2 b. 

 Part I, 1866, page 10 ; and Appendix II, Table, No. 8. 



Additional Synonyms : 



Quinqueloculina teiangtjlaris, J., P., and B., 1866. Monogr. For. Crag, p. 10, 



No. 2, pi. iv, fig. 1. 

 — — Terquem (after d'Orbigny), 1878. Mem. Soc. 



Geol. France, ser. 3, vol. i, No. 3, 

 p. 67, pi. viii (xii), figs. 1 — 9. 

 Triloculina triquetra, Terquem, 1882. Ibid., vol. ii, No. 3, p. 164, pi. xvi 



(xxiv), 6gs. 36, 37. 

 Miliolina triangularis (var. of M. seminulum), Brady, 1884. Eeport 'Chal- 

 lenger,' p. 157. 



Cl/araefers. — This appears to be one of the large and trihedral recognisable 

 varieties of the Miliolina seminulum, so changeable in its aspect according to the 

 variable evolution of its chambers. As such it seems advisable to keep it distinct 

 in this Monograph. It is more oval in the lateral aspect, and more triangular in 

 its cud view, than the smaller M. subrotunda — a near ally. 



Occurrence. — There is a difficulty in settling the mutual synonymy of this form 

 and M. tricarinata ; and the occurrences mentioned for M. triangularis in Part I 

 may be regarded as sufficient. 



