302 Transactions of the Society. 



Mil. Spiroloculina nitida d'Orbigny. 



•olocuh'na nitida d'Orbigny, 1826, Ann. Sci. Nat., vol. via. p. 298, No. 4. 

 Ditto. (d'Orbigny) Parker and Jones, 1871, Ann. Mag. Nat. Hist., ser. I. 



vol. viii . p. 2 IS. pi. viii. fig. 24. 

 Ditto. (d'Orbigny) Brady, 1884, Foram. ' Challenger,' p. 149, pi. ix. figs. 9, 



10. 

 Ditto. d'Orbigny T. Rupert Jones, 1895, Crag Foram. Palaont. Soc., 



1 1. 112, pi. v. tig. '■',, and woodcut fig. 5. 

 Ditto (d'Orbigny) Millett, 1898, Malay Foraminifera, Journ. E. Micr. Soc, 



p. 265, pi. v. figs. 9-13 a, b. 



Frequent in the recent condition. Xo fossil specimens found. 

 There is a considerable range of variation in the specimens of this 

 simplest of the Spiroloculine types, and they serve to link it up 

 with other Milioline species. Many of the specimens are some- 

 what rugose, and show a tendency to adopt a subarenacous type of 

 shell. This type .of shell closely approaches Miliolina sclerotica in 

 texture and general appearance. 



Millett (suprd) gives many interesting notes as to the 

 morphology of this species, which, under various names, appears 

 to have a very extensive geological record, ranging back to the 

 Lias at least. 



30o. Spirillum! ina pUoinhita Lamarck sp. 



Miliolites planuhtn Lanarck, 1805, Ann. du Museum, vol. v. p. 352, No. 4; 



1822, Anim. sans Verteb., vol. vii. p. 613, No. 4. 

 Spiroloculina depressa d'Orbigny, 1826, Ann Sci. Nat., vol. vii. p. 298, No. 1 ; 



Modele No. 92. 

 Spirolocidina badenensis d'Orbigny, 184t>, Foram. Foss. Yienne, p. 270, pi. xvi. 



figs. 13-15. 

 Spiroloculina depressa var. rotundata Williamson, 1858, Recent Foram. Great 



Britain, p 82, pi. vii. fig. 178. 

 Spirolocidina planulatn (Lamarck) Brady, 1884, Foram. ' Challenger,' p. 148, 



pi. ix. fig. 11 a, h. 

 Ditto. (Lamarck) Brady, 1887, Synopsis British Recent Foraminifera. 

 Ditto. (Lamarck) Goes, 1894, Arctic and Scandinavian Foram., p. 107, 



pi. xviii. figs. 836 n-c. 



Fossil, with one exception. The fossil specimens display a 

 considerable variety of form. The recent one is typical. It is a 

 common species on British coasts, and in temperate seas all over 

 the world, and its geological range extends back at least as far as 

 the Lia< 



306. Spiroloculina Terquemiana sp. n. 



Spiroloculina ornata Terquem, 1882, Mem. Soc. Geol. France, ser. 3, vol. ii. 

 pt. iii. p. 159, pi. xvi. (xxiv.) fig. 23 «, />. 



As the specific name " ornata " has been previously used by 

 d'Orbigny for a different organism,* it becomes necessary to re- 



* Spiroloculina ornata (d'Orbigny), 1839, Forain. Cuba, p. 167, pi. xii. figa. 7-7a 

 — Miliolina ornata (d'Orbigny) Mdbius, 18R0, Beitrag. Meeresfauna Insel Mauritius, 

 etc., p. 76, pi. ii. figs. 4-7. 



