EXPLANATION OF PLATE XXXVIII. 
NAUTILUS DEKAYI Morton (p. 243), 
Figs. 1. View of the aperture side of the cast figured by Dr. Morton (see Pl. xxxvul, Figs. 2 and 3). 
2. View of a small imperfect cast, showing the siphon and the convexity of the septa. Near 
Marlboro, New Jersey. 
3,4. Two views of a small specimen from the Middle Marls at J. S. Couk’s pits, near Tinton, 
New Jersey. This differs slightly in shape and in the distance between the septa and 
may possibly prove a distinct species. 
NAUTILUS BRYANI Gabb (p. 244). 
5,6. Lateral view and view of the inside of Mr. Gabb’s type, showing the narrow form and 
flattened sides. From the yellow saids of the Middle Marls at Vincentown, New Jer- 
sey. 
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