'.!u , Transactions of tin Society. 



384. Pulvinulina repanda Fichtel and Moll sp. 



Nautilus repandus Fichtel and Moll, 1803, Test. Micr., p. 35, pi. iii. fi.gB.a-d. 

 Rotalifia concamerata (mature) (Montagu) Williamson, 1858, Kecent Foram. 



Great Britain, p. 52, pi. iv. figs. 101-3. 

 Uiii, ilia repanda (Montagu) (Williamson) Parker and Jones, 1860, Ann. and 



Mag. Nat. Hist., ser. 3, vol. v. p. 175, No. 25. 

 Pulvinulinu repanda (Montagu) (Williamson) Brady, 1884, Foram. 'Chal- 

 lenger,' p. 684, pi. civ. fig. 18. 

 Ditto. (.Montagu) (Williamson) Brady, 1887, Synopsis British Becent 



Foraniinifera. 

 Ditto. (Montagu) (Williamson) Egger, 1893, Abhandl. k. bayer. Akad. Wiss. 



CI. II. vol. xviii. p. 405, pi. xviii. figs. 28, 30, 34, 35. 

 Ditto. (Montagu) (Williamson) Goes, 1894, Arctic and Scandinavian Foram- 



inifera, p. 95, pi. xvi. fig. 801. 

 Ditto. (Montagu) (Williamson) Flint, 1899, Bep. U.S. Nat. Museum for 1897, 



p. 328, pi. lxxii. fig. 8. 



Recent and fossil. This is a fairly common shallow-water type, 

 in most parts of the world, and occuws as a fossil as far back as the 

 Middle Tertiaries. 



385. Pulvinulina repanda var. concamerata Montagu var. 



Serpula concamerata Montagu, 1808, Test. Brit., Suppl., p. 160 {fide William- 

 son). 



Rotalina concamerata " mature " (Montagu) Williamson, 1858, Becent. Foram. 

 Great Britain, p. 52, pi. iv. figs. 102, 103. 



Pulvinulina repanda var. concamerutu (Montagu) Brady, 1884, Foram. 'Chal- 

 lenger,' p. 685, pi. civ. fig. 19. 



Kecent and fossil. The specimens are small compared with 

 those found on many parts of our coast. 



199. Pulvinulina semi-margiriata d'Orbigny sp. 

 In our description of this form we regret that we should have 

 overlooked the description and figures published by our friend 

 Mr. F. W. Millett in the Journal of this Society.* Mr. Millett has 

 also drawn our attention to the fact that Signor Fornasini has in 

 his series of papers reproducing the " Planches inedites " of d'Orbigny, 

 figured d'Orbigny's original drawing. f According to Mr. Millett, 

 the species occurs in great profusion at some stations in the Malay 

 Archipelago. He describes it under the name Discorbina semi- 

 marginata, and his figure, and the Malay specimens with which he 

 has been kind enough to supply us, are of markedly Diseorbine 

 growth. Our specimens, on the other hand — and we have found a 

 very largo number — are distinctly Pulvinuline, and we can only 

 conclude that this is one of those species which bridges the gap 

 between the allied genera Discorbina and Pulvinulina. The cha- 

 racteristic feature of the species, the subsidiary asterigerine cham- 

 bers, are equally well marked in both types. 



* See this Journal, 1903, p. 703, pi. vii. fig. 8. 



t C. Fornasini, 1906, Mem. R. Ace. Scienze dell' Istituto di Bologna, ser. vi. 

 torn. iii. p. 36, pi. iv. fig. 5. 



