132 PALEONTOLOGY OF NEW JERSEY. 



growth, which are exceedingly irregular; and also by fine, even, corrugated 

 spiral lines crossing them. 



This species is very closely related to Ainaiirojms paludinceformis H. & 

 M., but is a more rol^ust shell, with a shorter spire and a proportionally 

 larger and stronger body volution. This gives it a larger aperture, more 

 ventricose volutions and more compact spire. The surface chai'acters are 

 almost identical, but differ slightly in having the spiral lines more closely 

 arranged. It seems to have been generally identified with that species, but 

 when critically compared is found to be quite distinct, as among forms 

 which are so restricted in general features. 



Formation and locality : In the micaceous clays below the Lower Grreen 

 Marls, at Haddonfield, New Jersey. Collection Acad. Nat. Sci., Phila. 



Amauropsis punctata. 

 Plate XVI, Figs. 17-21. 



Phasianella punctata Gabb: Jour. Acad. Nat. Sci., Pliila., 2d ser., vol. 4, p. 299, 



PI. XLViii, Fig. 3; Synopsis, p. 67. 

 Eutropia {?) punctata (Gabb) Meek: Check List Cret. and Jur. Foss., p. 18 ; 



Geol. N. J., Newark, 1868, p. 728. 

 Littorina pimctata (Gabb) Meek: Geol. N. J., Newark, 1868, p. 729. 

 Compare Amauropsis paludinceformis Hall and Meek. 



Shell small or of medium size, with an elevated spire which has an 

 apical angle of from 40° to 45°; volutions four to five in number, very 

 ventricose, with deep, well marked sutures, which are slightly channeled 

 on some of the specimens; aperture round ovate, slightly pointed above and 

 rounded below ; rather less than half the length of the shell in casts or par- 

 tially exfoliated individuals; columella slender and solid, and in the cast 

 showing only a slight perforation from the removal of the substance of the 

 axis; surface of the shell marked by fine impressed spiral lines of puncta- 

 tions on the type specimen, but on casts or partially exfoliated individuals 

 this feature is not visible. 



This shell may be distinguished from A. Meekana herein described, by 

 its more slender form, higher spire, proportionally smaller and shorter body 

 volutions, and the more distinctly rounded upper volutions, the two spe- 



