MOLLUSCA. 663 



Family SIPHONODENTALIIDAE. 



4 : , ' . Genus CADULUS Philippi. 



Cadulus obnutus (Conrad). 

 Plate LXXV., Figs. 3-4. 



1869. Gadus obnutus Con., Am. Jour. Conch., vol. 5, p. 101, 



pi. 9, fig". 1 8. 

 1905. Cadulus obrutus Johns., Proc. Acad. Nat. Sci. Phil. 



(1905), p. 18. 



Description. Shell small, the length of an average specimen 

 being 4 mm., and its maximum diameter i mm. ; slightly arcuate, 

 contracted at each end, somewhat inflated in the central region. 

 Surface smooth. 



Remarks. This shell is so small that it is easily overlooked. 

 In the Lorillard locality it is preserved in the form of internal 

 casts, but at Haddonfield, the locality from which it was origi- 

 nally described, the shell itself is preserved. 



Formation and locality. Woodbury clay, Lorillard (102), 

 near Haddonfield (183). 



Geographic distribution. New Jersey. 



Class GASTROPODA, 



Sub-Class STREPTONEURA. 



Order ASPIDOBRANCHIA. 

 Sub-order DOCOGLOSSA. 



Family PATELLIDAE. 



Genus PATELLA Linneus. 



Patella tentorium Morton. 

 . Plate LXXV., Figs. 5-6. 



1834. Patella tentorium Mort., Synop. Org. Rem. Cret. Gr. U. 

 S., p. 50, pi. i, fig. ii. 



