EXPLANATION OF PLATE VIII. 
VoLUTOMORPHA GABBI Whitf. (p. 73). 
FIGs. 1. View of a small specimen from Holmdel, New Jersey. 
2,3. View of a cast from Mullica Hill, New Jersey. Acad. Nat. Sci., Phila. 
4. View of a cast of the species ? from Marlboro, New Jersey. 
VOLUTOMORPHA PONDEROSA Whitf. (p. 72). 
5,6. Two views of an imperfect cast from Neversink, New Jorsey. 
314 
