KONGL SV. VET. AKADEMIENS HAlSfBLmGAl^. BAND. 19. N:0 4. 47 



Syn. Cristell. eonvergens, elliptica, excisa, Bob. eompressa Bornem., 1855, Sept. Thon Heimsdoif; 



Zeitsohr. deutsch. aeol. Ges. 7, t. 13, figg. 17, 18, 19—30; t. 15, 

 %• 17. 

 » pulehella Costa, 1855, Foi-. Marna blu Vaticaiio; Mem. Nap. 2, p. 121, t. 1, fig. 8. 



gibba dOrb., 1839, Cuba Förf. p. 40, t. 7, figg. 20—21. 



" Landgretaeana, Rob. torosa Ess., 1864, Oberoligocän.; Wien. Ak. Sitz.-Ber. 1. 50, p. 461, 



465, t. 3, figg. 1—2. 

 » » , polita Rss,, 1865, Tert. Sch. nordl. u. mittl. DeutscliL; Wien. Ak. Sitz.-Ber, 



1. 18, p. 237, t. 3, figg. 42, 41. 

 » truneata Ess., 1850, Kreideraerg. Lemberg; Haid. Nat. Abh. 4. 1, p. 32, t. 2, fig. 8. 



intermedia var. Ess., 1861, Griinsand, NewYersey; Wien. Ak. Sitz.-Ber. 1.44, p. 336, t. 8, 

 fig. 2. 

 » rostrata, Russeggeri Ess., 1867, Steinsalzablag. Wieliczka; Wien. Ak. Sitz.-Ber. 1. 55, p. 86, 



t. 3, figg. 6, 7. 

 » variabilis Ess. 1849, neue Por. Österr. tert. Beck.; Wien. Ak. Dkschr. 1. i, p. 369, 



t. 46, figg. 15—16. 

 » galeata Ess., 1851, Sept. Thon. v. Berlin; Ztschr. deutsch, geol. Ges. 3, p. 66, t. 4, 



fig. 20. 

 » » Hken., 1875, For. Clav. Szåb. Sch. p. 54, tt. 13, 14, figg. 20, 12. 



» nuda var. Ess., 1861, Palseont. Beiträge; Wien. Ak. Sitz.-Ber. 1. 44, p. 328, t. 6, 



figg- 1—3- 

 Anomalina aurieula Eömer, 1842, Verstein. Nordd. Kreide p. 98, t. 15, fig. 26. 



Cristell. Osnabrugensis Ess., 1855, Tert. Schioht. nördl. a. mittl. Deutschl.; Wien. Ak. Sitz.-Ber. 



1. 18, p. 238, t. 4, figg. 44—45. 

 Nautilina puteolana Costa, 1854, Pal. Nap. t. 27, fig. 28. 



Cristell. Josephina d'Orb., 1846, For. tert. Vienne p. 88, t. 3, figg. 37—38. 



» acuta Ess., 1859, Westph. Kreidef.; Wien. Ak. Sitz.-Ber. 40, p. 213, t. 10, fig. 3. 



» Larva Stache, 1865, tert. Mergel. Whaingar. Haf.; Novara Eeise, geol. 1. 2, p. 232, 



t. 23, fig. 11. 

 Robul. Kressenbergensis Gumb., 1868, Nordalp. Eocän.; K. Bayr. Ak. Wiss. Abh. 1. 10. 2, p. 641, 



t. 1, fig. 71. 



e) costata, vel striata: 

 Robul. elegantissima Costa, 1855, Pal. Nap. p. 198, t. 19, fig. 4. 



Nodosariiia crepidiila var. italica Defk. 



Tab. III, figg. 45—49. 



Is a highly inflated Nod. crepidula, which not seldom becomes trigonal and, 

 neai-ly like an Orthocerina, particularly when the first chainbers are very slightly or 

 not at all arranged in a helicoid manner. The inclination of the septa to the axis is 

 liable to great variation. Sometimes the shell has the shape of a duplex trigonal py- 

 ramid with sharp angles and somewhat excavated sides, the aperture being seemingly 

 central. 



Its beautiful pearly shell is met with both on the coralline-gravel and on the 

 chalk-ooze. It attains 3 mm. in height and 2 mm. in breadth. 



Fig. 47 : The outlines of the septal plan. 



