256 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Ser. 



N. houeana has been previously recorded from the Mio- 

 cene of Norfolk, Virginia. 



California, in both samples; very common. 



Nonionina umbilicatula (Montag.). 

 Plate XXX, Fig. 15. 



Nautilus Hmbilicatulus Montagu, 1803, Test. Brit., p. 191; Suppl., p. 78, 



PI. XVIII, fig. I. 

 Nonionina soldanii d'Orr., 1846, Foram. Foss. Vienne, p. 109, PI. V, figs. 



15, 16. 

 Nonionina umbilicatula Brady, 1884, Chall. Rept., Vol. IX, p. 726, PI. 



CIX, figs. 8, 9. 



This is a Tertiary species, and it has been noted, amongst 

 other occurrences, from the Older Pliocene of Monte Bar- 

 tolomeo (under the name of N. soldanii^. 



California, in both samples; frequent. 



Nonionina pompilioides (Fichtel & Moll). 



Plate XXX, Figs. 16 and i6«. 



Nautilus pompilioides Fichtel & Moll, 1798, Test. Micr. , p. 31, PI. II, 



figs. a-e. 

 Nonionina umbilicata d'Orbigny, 1826, Ann. Sci. nat.. Vol. VII, p. 293, 



PI. 15, figs. 10-12, No. 5, Modeles, No. 86. 

 Nonionina pompilioides Brady, 1884, Chall. Rept., Vol. IX, p. 727, PI. CIX, 



figs. 10, II. 



The specimens from California are very typical examples, 

 with a broad terminal septal face. 



Santa Clara County, California; rare. 



