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 Amauropsis paludineformis H. & 
M., but is a more robust 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 characters 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: Ta the micaceous clays below the Lower Green 
Marls, at Haddonfield, New Jersey. Collection Acad. Nat. Sci., Phila. 
AMAUROPSIS PUNCTATA, 
Plate xvi, Figs. 17-21. 
Phasianella punctata Gabb: Jour. Acad. Nat. Sci., Phila., 2d ser., vol. 4, p. 299, 
Pl. xivinl, Fig. 3; Synopsis, p. 67. 
Hutropia (?) punctata (Gabb) Meek: Check List Cret. and Jur. Foss., p. 18; 
Geol. N. J., Newark, 1868, p. 728. 
Inttorina punctata (Gabb) Meek: Geol. N. J., Newark, 1868, p. 729. 
Compare Amauropsis paludineformis 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 
yolutions, and the more distinctly rounded upper volutions, the two spe- 
