K0N6L. SV. VET. AKADEMIENS HANDLINGAK. BAND. 19. N:0 4. 101 



The pores of the adult are finer and closer set than in Plan. farcta; in young 

 specimens the pores are of variable size, often coars and scattered. The surface is of 

 high finish without being quite polished. 



It is one of the most common rhizopodes in deep water, both in the cretaceous 

 ooze and on the coralline-gravel, attaining a horizontal diameter of 1,5 mm. 



Fig. 234: the aboral side of Pla7i. Ungeriana with large and somewhat granulated 

 central boss. 



Fig. 235: side view. 



Fig. 236: the apertural side with defectively grown umbilical boss. 



a)magisconvexa: 



Syn. Rotalina Haidingeri d'Oeb., 1846, For. tert. Vieniie, p. 154, t. 8, figg. 7 — 9. 



.) rosea d'Orb., 1826, Tabl. metli.; Anu. Se. Nat. 7, p. 272; Mod. 35. 



» " u'Orb., 1839, Cuba p. 72, t. 3, figg. 9—11. 



? » Ehrenbergii Bailey, 1850, Examin. of Soundings; Smithson. Gontrib. of knowledge 2, 



Avt. 3, p. 10, figg. 11—13. 

 Planorb. Haidingeri Brady, 1864, Rhizopod. Shetl.; Träns. Lin. Soc. 24, p. 469, t. 48, fig. 11. 



u farcta var. Haidingeri Park. et Jones, 1865, North. Atl. and Aret. Oc.; Phil. Transact. 



155. 1, p. 382, t. 16,' fig. 22. 

 » Haidingeri Park. et Jones, 1866, Crag. Foramf.; Palteont. Soc. 19, t. 4, fig. 18. 



Rotalina lenticula Ess., 1845, Bohm. Kreide 1, p. 35, t. 12, fig. 17. 



» gråta Rss., 1865, deutsch. Sept. Thon; Wien. Ak. Dkschr. 1. 25. i, p. 163, t. 4, 



fig. 17. 

 » Dutenaplei Egger, 1857, T.lioc. Ortenburg; Leonh. u. Bronn. Jhrb. 1857, p. 274, t. 7, 



fig. 8—10. 

 1) orthorapha Egg., ibid. p. 275, t. 10, figg. 1 — 3. 



» diseigera, anomphala Egg., ibid. p. 275, t. 8, figg. 5 — 10. 



o propinqua Egg., ibid. p. 275, t. 7, figg. 14 — 17. 



Kalembergensis Egg., ibid. p. 273, t. 9, figg. 21—23. 

 Truneat. kallomphalia Gtjmb., 1868, Nordalp. Eoeän.; K. Bayr. Ak. Wiss. Abh. 1. 10. 2, p. 659, 



t. 2, fig. 102. 

 Rotalia eoesena' Gijmb., ibid. p. 650, t. 2, fig. 87. 



» pteromphala, megomphala GtMB., ibid. p. 651, 655; t. 2, fig. 88, t. 2, fig. 94 bis. 

 » truneana GtMB., ibid. p. 653, , t. 2, fig. 93 (in b) transiens). 



Rosalina subumtaonata Gtjmb., ibid. p. 657, t. 2, fig. 98. 



Rotalina Akneriana var. Bornem., 1855, Sept. Thon Hermsdorf; Ztschr. deutseh. geol. Ges. 7, p. 340, 



t. 16, fig. 7. 

 »- Ungeriana var. Bornem., ibid. p. 341, t. 16, fig. 5. 



PTruneat. propincLua Rss., 1855, Tert. Sch. nordl. u. mittl. Deutschl.; Wien. Ak. Sitz.-Ber. 1. 18, 



p. 241, t. 4, fig. 53. 

 . ? » » Hken., 1875, Clav. Szäb. Sch. p. 71, t. 8, fig. 9. 



Pulvinulina Haidingeri Hken., 1875, For. Olav. Szäb. Sch., p. 77, t. 15, fig. 10. 



» umbilicata Hken., ibid. t. 15, fig. 9. 



Rotalia peraifinis Costa, 1855, Pal. Nap. 2. t. 22, fig. 17. 



-) Briickneri Rss., 1855, Kreidegeb. Meklenburg; Zeitschr. deutseh. geol. Ges. 7, p. 273, 



t. 9, fig. 7. 

 » hemispliEerica Rss., 1861, Kreidetuff Maastricht; Wien. Ak. Sitz.-Ber. 1. 44, p. 314, t. 2, 



fig. 5. 



