EXPLANATION OF PLATE XXXVIII. 
NavuTiILus DEKAyI Morton (p. 243). 
Fics. 1. View of the aperture side of the cast figured by Dr. Morton (see Pl. xxxvu, Figs. 2 and 3) 
2. View of a small imperfect cast, showing the siphon and the convexity of the septa. N 
Marlboro, New Jersey. ; ; 
3,4. Two views of a small specimen from the Middle Marls at J. S. Cook’s pits, near Tinto1 
New Jersey. This differs slightly in shape and in the distance between the septa 
may possibly prove a distinct species. 
Navutitus Bryant Gabb (p. 244). 
; ae 
5,6. Lateral view and view of the inside of Mr. Gabb’s type, showing the narrow form and — 
flattened sides. From the yellow sands of the Middle Marls at Vincentown, New Jer- 
sey. : pice 
374 
