THE NAUTILUS. 



VOL. XXIV. NOVEMBER, 191O. No. 7 



NEW EOCENE FOSSILS FROM THE SOUTHEBN STATES. 



BY T. H. ALDRICH. 



[Plate IV, fig. 6, OVULACT^EON ALDRICHI Wheeler, described in 

 the June No., p. 13 ED.] 



FlSSDRIDEA MAURTI n. Sp. PI. IV, figs. 1, 2. 



Shell large, of medium height, narrowed at the anterior, and bent 

 slightly downward; regularly oval on the posterior. Foramen rather 

 large, somewhat keyhole-shaped ; shell radiately sculptured, with 

 about 32 strong primary ribs, generally with two smaller ribs be- 

 tween, at the anterior the ribs are nearly equal and closely set, the 

 crossbar to the foramen deeply pitted, and the foramen itself trian- 

 gular within. 



The close-set lines of growth are very numerous; they break up the 

 ribs into low nodules. Margin of shell strongly crenulate and flat- 

 tened within. Longest, diam. 31 mm.; breadth 24 mm.; height 11 

 mm. 



Locality. Matthews Landing bed on Dale Branch, near Oak 

 Hill, Ala. Named in honor of Miss Carlotta J. Maury, a co-worker 

 in Tertiary palaeontology. Figures by Prof. G. D. Harris. 



ADEORBIS ? NAUTILOIDES n. sp. PI. IV, figs. 3, 4 and 5. 



Shell very small, substance rather thin; whorls three, expanding 

 rapidly. The body whorl separating and extending beyond the 

 other whorls; surface smooth except near the aperture where a few 

 growth lines become coarser; umbilicus small. The figure does not 

 show the separation of the whorls well. 



