Report on Foraminifera. By F. W. Millett. 605 



Sub- Family Nummulitinse. 



Amphistegina d'Orbigny. 



Amphistegina Lessonii d'Orbigny. 



Amphistegina Lcssonii d'Orbigny, 1826, Ann. Sci. Nat., vol. vii. 

 p. 304, No. 3, pi. xvii. figs. 1-4; Modele No. 98. A. vulgaris, Id. 

 Ibid., p. 305, No. 8 ; Modele No. 40. A. vulgaris (d'Orb.) Amicis, 

 1886, Atti Soc. Tosc. Sci. Nat., (Mem.) vol. vii. p. 242, pi. xi. fig. 2. 

 A. Lcssonii (d'Orb.) Biitschli, 1886, Morph. Jahrb., vol. xi. p. 86, 

 pi. vi. figs. 7, 8. A. Lessonii (d'Orb.) Brady, Parker, and Jones, 

 1888, Trans. Zool. Soc., vol. xii. p. 230, pi. xliii. fig. 15. A. Lessonii 

 (d'Orb.) Terrigi, 1889, Mem. E. Accad. Lincei, ser. 4, vol. vi. p. 121, 

 pi. ix. figs. 6-8. A. Lessonii (d'Orb.) Dreyer, 1891, Jenaische 

 Zeitsch. fiir Naturwiss., vol. xxvi. pi. xxviii. fig. 267. A. Lessonii 

 <d'Orb.) Egger, 1893, Abhandl. k. bayer. Akad. Wiss., CI. II. 

 vol. xviii. p. 431, pi. xx. figs. 18, 19. A. Lessonii (d'Orb.) Zittel, 

 1896, Bull. Soc. Geol. France, ser. 3, vol. xxiv. p. 969, fig. I 1 " 7 . 

 A. Lcssonii (d'Orb.) Flint, 1899, Eep. U.S. Nat. Mus. for 1897 

 <1899), p. 338, pi. lxxxii. fig. 4. A. Lcssonii (d'Orb.) Chapman, 1901, 

 Proc. R. Soc. Edinburgh, vol xxiii. p. 394, pi. iii. fig. 2. A. vul- 

 garis (d'Orb.) Newton and Holland, 1902, Journ. Coll. Sci. Imp. 

 Univ. Tokyo, vol. xvii. p. 16, pi. ii. fig. 1. A. Lessonii (d'Orb.) 

 Fornasini, 1903, Rendic. R. Accad. Sci. 1st. Bologna, n. s., vol. vii. 

 pi. ii. fig. 1. A. Lessonii (d'Orb.) Sherlock, 1903, Bull. Mus. Comp. 

 Zool. Harvard College, vol. xxxviii. p. 356, fig. 5. 



This form is not abundant, but it occurs at several Stations, and 

 is most frequent in Area 1. 



Amphistegina Cumingii Carpenter. 



Amphistegina Cumingii Carpenter, 1859, Phil. Trans., vol. cxlix. 

 p. 32, pi. v. figs. 13-17, pi. vi. figs. 5, 6. A Cumingii Murray and 

 Renard, 1891, Chall. Kept. ' On Deep Sea Deposits,' pis. xiii., xiv. 



Is represented by a few examples from one or two Stations in 

 both Areas. 



Whether this species should be assigned to Amphistegina or to 

 Nummulina is still undecided. The Malay specimens exhibit a 

 greater affinity with Operculina than with Nummulina. 



Operculina d'Orbigny. 

 Operculina complanata Defrance sp. 



Lenticulites complanata Defrance, 1822, Diet. Sci. Nat., vol. xxv. 

 p. 453. Operculina complanata (Basterot) d'Orbigny, 1826, Ann. 

 Sci. Nat., vol. vii. p. 281, No. 1, pi. iv. figs. 7-10 ; Modele, No. 80. 

 O. complanata (Defr.) Woodward and Thomas, 1885, 13th Ann. 



