KONGL. SV. VET. AKADEMIENS HANDLINGAK. BAND. 19. N:0 4. 109 



Syn. Spirillina vivipara EHRENB., 1841, Verbreit. u. Einfluss des mikroskopischen Lebens in Siid- u. 



Nord-Amerika; Berl. Kon. Wiss. Akad. Abhandl. 1841, t. 3, fig. 41; 

 ibid. 1847, t. 2, fig. 82. 



Cornuspira perforata M. SCHULTZE, 1854, Organ. Polythalam. p. 41, t. 2, fig. 22. 

 Spirillina vivipara WILLIAMS., 1858, Brit. rec. For. p. 92, fig. 202. 



Spirillina PARK, et JONES, 1851; An. Mag. Nat. Hist. 19, p. 12, t. 11, fig. 46. 



)> PAKK. et JONES, 1865, North. Atl. and Arct. Oc.; Phil. Transact. 155. 1, 



p. 397, t. 15, fig. 28. 



PARK, et JONES, 1866, Crag, foramf.; Pal. Soc. 19, t. 3, figg. 2022. 



PCyclolina impressa EGGER, 1857, Mioc. Ortenburg; Leonh. u. Bronn. Jhrb. 1857, p. 304, t. 8, 



figg. 78. 

 ? Spirillina polygyrata, Ptenuissima GVMB., 1862. Streitenb. Schwammlag.; Wiirterab. Nat. Verein. 



Jhrhft. 1862, p. 214, t. 4, figg. 1112. 

 margaritifera WILLIAMS., 1858, Brit. rec. Forainf. p. 93, fig. 204. 



Appendix. 



Spirillina insequalis BRADY, 1879, Notes on retic. Rhiz.; Quart. Journ. micr. Sc. p. 278, t. 8, 



figg. 25, a, b. 



limbata BRADY, ibid. p. 278, t. 8, figg. 26, a, b. 



obconica BRADY, ibid. p. 279, t. 8, figg. 27, a, b. 



tuberculata BRADY, ibid. p. 279, t. 8. figg. 28, a, b. 



Pulvinulina auricula FICHT. and MOLL. 



Tab. VIII, figg. 273275. 



This handsome, generally hyaline, species resembles very much Nodosarina crepi- 

 dula. Although it seems to be one of the best defined species in the whole class, still 

 intermediate forms are found with a nearly round, rotaline shape (as for instance Rot. 

 Hauerii D'()RB. from the tertiary strata at Vienna). 



It is not uncommon both in the coralline-gravel and in the chalk-ooze, but at- 

 tains a higher development in the former. 



For clearing up the intricate synonymy of this genus we are indebted to Messrs 

 PARKERS' and JONES' elaborate and careful inquiries, recorded in their lucid and admi- 

 rable treatises 0n foramf. from North Atlantic and Arctic Oceans 1865, and 0n the 

 foramf. of the Family Rotalina; (CARPENTER) found in the cretaceous formations etc. in 

 Qu. Journ. geol. Soc. 1872. 28, p. 103. 



Eig. 273: frontal view; 



Fig. 274: spire-side. 



Fig. 275: pigmy, broad form. 



Syn. Nautilus Auricula FICHT. et MOLL., 1803, Test. micr. p. 108, t. 20, figg. a f. 



Valvulina oblonga D'ORB., 1844, lies Canaries p. 136, t. 1, figg. 40 42. 



excavata D'ORB., ibid. p. 137, t. 1, figg. 43 -45. 



Rotalina oblonga WILLIAMS., 1858, Brit. rec. forf. p. 51, figg. 98100. 



