Report on Foraminifera. Bg F. W. Millett. 703 



description). Deshayes, 1824-1837, Description des Coquilles fos- 

 siles des environs de Paris, pi. cvi. figs. 16-19. Botalina semi- 

 marginata (d'Orb.) Terquem, 1882, Mem. Soc. Geol. Fr., ser. 3, 

 vol. ii. p. 56, pi. xi. figs. 12-14. 



As represented in the Malay Archipelago, this is a Eotaline 

 form, with a thin smooth hyaline test, and provided with a well- 

 developed series of Asterigerine umbilical chambers. It bears a 

 strong resemblance to the D. rimosa of Parker and Jones, but is 

 devoid of the chinks between the chambers characteristic of that 

 species. It may be noted that both forms are found in the same 

 localities, whether recent or fossil. 



The only description of D. semi-mar -ginata published by d'Or- 

 bigny is in the Prodrome de Paleontologie, vol. ii. 1850, p. 407, 

 No. 1317, " Espece rugueuse, ovale, bordee interieurement," which 

 is insufficient to identify it ; whilst the figure in the " Planches 

 inedites," referred to by Terquem, has never been published. 

 Deshayes neither names nor describes the form figured by him, 

 consequently the first author to give a sufficient description of the 

 species was Terquem. 



In the Malay Archipelago the form occurs in great profusion 

 at Station 12, and in smaller quantities at Station 11 ; both 

 Stations being in Area 1. 



Discorbina rugosa d'Orbigny sp. 



Eosalina rugosa d'Orbigny, 1843, Foram. Amer. Merid., p. 42, 

 pi. ii. figs. 12-14. Discorbina rugosa (d'Orb.) Brady, 1884, Chall. 

 Eept., p. 652, pi. lxxxvii. figs. 3, 4. I), rugosa (d'Orb.) Sherborn 

 and Chapman, 1889, Journ. E. Micr. Soc, p. 487, pi. xi. fig. 33. 

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

 CI. II. vol. xviii. p. 383, pi. xv. figs. 1-3. D. rugosa (d'Orb.) 

 Chapman, 1896, Journ. E. Micr. Soc, p. 590, pi. xiii. fig. 10 ; and 

 1900, Geol. Mag., dec. 4, vol. vii. pi. xiv. fig. 9. 



Examples of the form are numerous, and occur all over the 

 region ; but they are small, and the shells thin and more or less 

 hyaline. 



D'Orbigny obtained it from Patagonia. There are but two 

 'Challenger' Stations, both on the southern shores of Papua, 155 

 and 580 fathoms respectively. Egger gives numerous ' Gazelle ' 

 Stations, extending from West Africa to Fiji, at depths of from 

 37 to 3020 fathoms. 



Discorbina allomorjpliinoidcs Eeuss sp. 



Valvulina allomoiyhinoides Eeuss, 1860, Sitzungsber. k. Akad. 

 "VViss. Wien, vol. xl. p. 223, pi. xi. fig. 6. Discorbina aMomor- 



2 z 2 



