1905.] NATURAL SCIENCES OF PHILADELPHIA. 19 



types of this species probably led Prof. Whitfield to describe the type 

 of A. ovoidea Gabb, as a new species, " Actoeon suhovoides," although 

 the original label was present. Both of Gabb's species arc well de- 

 scribed, and in the true types all the characters in the original descrip- 

 tions are clearly shown. There are also in the Academy's collection 

 the specimens figured by Whitfield on pi. 19, figs. 9-12. 



Aotaeon ovoidea Gabb, Proc. Acad. Nat. Sci., 1861, p. 319. 



Figured by Whitfield (p. 155, pi. 19, figs. 14-16) as the type of a 

 new species, "A. suhovoides." 



Aotaeon gabbana Whitfield, Mon. U. S. Geol. Sur., XVIII, 156, pi. 19, figs. 28-25, 1892 = ActiBon- 



ina biplicata Gabb, Proc. Acad. Nat. Sci., 1860, p. 93, pi. 2, f, 13 (not d'Orbigay). 

 Aotaeon forbesiana Whitfield, Mon. U. S. Geol. Sur., XVIII, 157, pi. 19, figs. 17-22, 1892. 

 Avellana bullata (Morton). 



Tornatellal bullata Morton, Syn. Org. Rem., 48, pi. V, f. 3, 1834. 

 Avellana bullata Whitfield, Mon. U. S. Geol. Sur., XVIII, 163, pi. 20, 

 figs. 1-4. 



Globiconcha curta Gabb, Proc. Acad. Nat. Sci., 1861, p. 319. 



Cinulia naticoides (Gabb). 



ActcBonina naticoides Gabb, Jour. Acad. Nat. Sci., IV, 2 ser., 299, pi. 48, f. 2, 

 1860. 



Cinulia COStata Johnson, Proc. Acad. Nat. Sci., 1898, p. 462, f. 1. 

 CyUchna recta (Gabb). 



Bulla recta Gabb, Jour. Acad. Nat. Sci., IV, 2 ser., 302, pi. 48, f. 17, 1860. 



Bulla mortoni Lyell and Forbes, Quar. Jour. Geol. Soc, London, I, 63. 



Specimen figured by Whitfield (pi. 20, f. 9). 



Bulla macrostoma Gabb, Jour. Acad. Nat. Sci., IV, 2 ser., 301, pi. 18, figs. 15, 16, 1860. 

 BuUiopsis cretacea Conrad, Jour. Acad. Nat. Sci., Ill, 334. 



PATELLID^. 

 Patella tentorium Morton, Syn. Org. Rem., 50, pi. 1, f. 11, 1834.. 



PLEUROTOMARIID^. 

 Fleurotomaria crotaloides (Morton). 



Cirrus crotaloides Morton, Syn. Org. Rem., 49, pi. 19, f. 5, 1834. 

 Also the specimen figured by H. A. Pilsbry {Proc. Acad. Nat. Sci., 

 1896, p. 10, pi. I). 

 Pleurotrema solariformis Whitfield, Mon. U. S. Geol. Sur., XVIII, iso, pi. 22, figs. 12, 13. 



It is the Architectonica abhottii Gabb, in part (Proc. Acad. Nat. Sci. 

 1861, p. 321). 



DELPHINULID^. 

 Straparolus lapidosus (Morton). 



Delphinula lapidosa Morton, Syn. Org. Rem., 46, pi. 19, f. 7, 1S.34. 



