MOLLUSCA. 735 



viduals. In addition to^ the above, one of the specimens figured 

 by Whitfield among the types of his P turritis, the original of 

 his figures i and 2, seems to be only a small example of this same 

 species. 



Formation and locality.. — Navesink marl, Atlantic Highlands 

 (108), Middeltown (113^), Crosswicks Creek (149, 195), near 

 Mount Laurel (166), Mullica Hill (169), Freehold (Whitfield) ; 

 Tinton beds, near Freehold (132). 



Geographic distribution. — New Jersey, Alabama, 



Pyrifusus macfarlandi Whitfield. 

 Plate LXXXV., Fig. 17. 



1892. Pyrifusus Macfarlandi Whitf., Pal. N. J., vol. 2 (Monog. 

 U. S. G. S., vol. 18), p. 52, pi. 4, figs. 14-15. 



Description. — ^"Shell below a medium size, short-conical or sub- 

 globose, shorter below than above the point of greater diameter, 

 the low spire having an apical angle of nearly 90°, with the body 

 volution proportionately large. Volutions four and a half to five 

 in number, ventricose, the upper ones rounded on the exposed 

 parts, even in the cast, with distinct, deeply marked sutures; 

 body volution somewhat shouldered on the top, but not flattened ; 

 below it is short and very rapidly diminishing, so as to produce 

 nearly a straight line from just below the point of greatest dia- 

 meter tO' the margin of the cavity 'left by the removal of the 

 columella or axis of the shell ; aperture imperfect in form, but as 

 seen by the section of the cast must have been acutely ovate, 

 sharply pointed below and gradually widened upward for abotit 

 two-thirds of its length, and rounded at the upper end ; columella, 

 as shown by the axial cavity, large and smooth, without folds or 

 ridges ; surface marked by numerous vertical folds, about eight of 

 which may be counted on the outer half of the body whorl ; these 

 not seen on the cast below the point of greatest diameter, indicat- 

 ing their absence on the lower part of the volution in the living 

 shell; no remains of spiral lines preserved on the specimen." 

 (Whitfield.) 



