KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 19. N:0 4. 



109 



Syn. Spirillina vivipara 



Bhrenb., 1841, Verbreit. u. Einfluss des mikroskopischeii Lebens in Siid- u. 



Nord-Amerika; Berl. Kön. Wiss. Akad. Abbandl. 1841, t. 3, fi?. 41; 



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

 M. ScHULTZE, 1854, Organ. Polythalam. p. 41, t. 2, fig. 22. 

 Williams., 1858, Brit. rec. For. p. 92, fig. 202. 

 Park. et Jones, 1851; An. Mag. Nat. Hist. 19, p. 12, t. 11, fig. 46. 

 Pakk. et Jones, 1865, North. Atl. and Aret. Oc; Phil. Transaot. 155. 1, 



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

 Park. et Jones, 1866, Crag. foramf.; Pal. Soc. 19, t. 3, figg. 20—22. 

 Egger, 1857, Mioc. Ortenburg-; Leonh. ii. Bronn. Jhrb. 1857, p. 304, t. 8, 



figg. 7—8. 

 PSpirillina polygyrata, Ptenuissima Gumb., 1862. Streitenb. Schwammlag.; Wiirtemb. Nat. Verein. 



Jlirhft. 1862, p. 214, t. 4, figg. 11—12. 

 " margaritifera Williams., 1858. Brit. rec. Foramf. p. 93, fig. 204. 



Cornuspira perforata 

 Spirillina vivipara 

 Spirillina » 



PCyelolina impressa 



Spirillina insequalis 



" limbata 



« obconica 



» tubereulata 



Appendix. 



Brady, 1879, Notes on retic. Ehiz.; Quart. Journ. micr. So. p. 278, t. 8, 



figg. 25, a, b. 

 Brady, ibid. p. 278, t 8, figg. 26, a, b. 

 Brady, ibid. p. 279, t. 8, figg. 27, a, b. 

 BiiADY, ibid. p. 279, t. 8. figg. 28, a, b. 



Pulvinulina auricula Ficht. and Moll. 



Tab. VIII, figg. 273—275. 



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'Orb. 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 »On foramf. from North Atlantic and Arctic Oceans 1865, and »On the 

 foramf. of the Family Rotalinw (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: pigray, broad form. 



Syn. Nautilus Auricula 

 Valvulina oblonga 

 )) exeavata 



Eotalina oblonga 



Ficht. et Moll., 1803, Test. micr. p. 108, t. 20, figg. a— f. 

 d'Orb., 1844, Hes Canaries p. 136, t. 1, figg. 40—42. 

 d'Orb., ibid. p. 137, t. 1, figg. 43-45. 

 Williams., 1858, Brit. rec. förf. p. 51, figg. 98—100. 



