Report on Foraminifera. By F. W. Millett. 699 



Discorbina Vilardeboana d'Orbigny sp. 



Rosalina Vilardeboana d'Orbigny, 1843, Foram. Amer. Merid., 

 p. 44, pi. vi. figs. 13-15. Discorbina Vilardeboana (d'Orb.) Parker 

 and Jones, 1872, Quart. Journ. Geol. Soc, vol. xxviii. p. 115. 

 D. Vilardeboana (d'Orb.) Egger, 1893, Abhandl. k. bayer. Akad. 

 Wiss., CI. II. vol. xviii. p. 387, pi. xv. figs. 13-15. D. Vilarde- 

 boana (d'Orb.) Goes, 1894, K. Svenska Vet.-Akad. Handl., vol. 

 xxv. p. 95, pi. xvi. fig. 796. D. Vilardeboana (d'Orb.) Chapman, 

 1898, Journ. E. Micr. Soc, p. 15, pi. ii. fig. 16. 



This variety is still more abu ndant, but it is doubtful if any of 

 the examples are sufficiently distinct from D. rosacea to warrant 

 their separation from that form. 



Discorbina concinna Brady. 



Discorbina concinna Brady, 1884, Chall. Kept., p. 646, pi. xc. 

 figs. 7, 8. D. concinna (Brady) Efjger, 1893, Abhandl. k. bayer. 

 Akad. Wiss., CI. II. vol. xviii. p. 388, pi. xv. figs. 22-24. 



This form, rare elsewhere, is very common in the Malay 

 Archipelago, and occurs all over the region. Amongst a multitude 

 of individuals there must of necessity .be much variation, and this 

 is here in the direction of D. orbicularis. 



Brady enumerates seven ' Challenger ' Stations where it has been 

 found, at depths varying from 16 to 620 fathoms ; to these I can 

 add Station 185, from which there are examples in my collection. 



There are three ' Gazelle ' Stations at depths of from 33 to 196 

 fathoms. These appear to be the only records of its occurrence. 



Discorbina orbicularis Terquem sp. 



Rosalina orbicularis Terquem, 1876, Anim. Plage de Dunkerque, 

 p. 75, pi. ix. fig. 4. Discorbina orbicidaris (Terq.) Balkwill and 

 Millett, 1884, Journ. Micr., vol. iii. p. 23, pi. iv. fig. 13. D. orbicu- 

 laris (Terq.) Balkwill and Wright, 1885, Trans. B. Irish Acad., 

 vol. xxviii. (Sci.) p. 349, pi. xiii. figs. 31-33. D. orbicularis (Terq.) 

 Brady, Parker, and Jones, 1888, Trans. Zool. Soc, vol. xii. 

 p. 227, pi. xlvi. fig. 1. D. orbicidaris (Terq.) Terrigi, 1889, Mem. 

 B. Accad. Lincei, ser. 4, vol. vi. p. 115, pi. xvii. figs. 2, 3. D. orbicu- 

 laris (Terq.) Egger, 1893, Abhandl. k. bayer. Akad. Wiss., CI. II. 

 vol. xviii. p. 389, pi. xv. figs. 16-18, 76-78. D. orbicidaris 

 (d'Orb.) Jones, 1895, Palteont. Soc, p. 295, pi. vii. fig. 31. D. sub- 

 rotunda^ 'Orb. sp.) Fornasini, 1898, Bendic Accad. Sci. 1st. Bologna, 

 n.s., vol. ii. (figures in the text, after d'Orbigny). 



This form is plentiful at Stations 2 and 22 ; and occurs also at 

 Station 14, but in very small numbers. 



