MARYLAND GEOLOGICAL SURVEY 643 



VENIELLA CONRADI (Morton) Stoliczka 

 Plate XXXVIII, Figs. 2-7 



Venilia conradi Morton, 1833, Am. Jour. Sci., 1st ser., xxiii, p. 294, pi. 



viii, figs. 1, 2. 

 Venilia conradi Morton, 1834, Syn. Org. Rem. Cret. Group, U. S., p. 67, pi. 



viii, figs. 1, 2. 



Venilia trigona Gabb, 1862, Proc. Acad. Nat. Sci., Phila., for 1861, p. 324. 

 Venilia conradi Meek, 1864, Check List Inv. Fossils, N. A., Cret. and Jur., 



p. 13. 

 Venilia trigona Meek, 1864, Check List Inv. Fossils, N. A., Cret. and Jur., 



p. 13. 



Venilia conradi Conrad, 1868, Cook's Geol. of New Jersey, p. 727. 

 Goniosoma inflata Conrad, 1869, Am. Jour. Conch., vol. v, p. 44, pi. i, fig. 10. 

 Venilia elevata Conrad, 1870, Ibidem, vol. vi, p. 74, pi. iii, figs. 7, 7a. 

 Veniella conradi Stoliczka, 1871, Mem. Geol. Survey of India, Pal., Cret. 



Fauna Southern India, vol. iii, p. 190. 

 Veniella conradi Meek, 1876, Kept. U. S. Geol. Survey, Territories, vol. ix, p. 



148, text figures 9-11. 

 Veniella conradi Whitfield, 1885, Mon. U. S. Geol. Survey, vol. ix, p. 144, 



pi. xix, figs. 8-10. 



Veniella trigona Whitfield, 1885, Ibidem, p. 149, pi. xix, figs. 11-14. 

 Veniella inflata Whitfield, 1885, Ibidem, p. 147, pi. xix, figs. 4, 5. 

 Veniella elevata Whitfield, 1885, Ibidem, p. 148, pi. xix, figs. 6, 7. 

 Veniella conradi Johnson, 1905, Proc. Acad. Nat. Sci., Phila., p. 13. 

 Veniella trigona Johnson, 1905, Ibidem. 

 Veniella elevata Johnson, 1905, Ibidem. 

 Veniella inflata Johnson, 1905, Ibidem. 

 Veniella conradi Weller, 1907, Geol. Survey of New Jersey, Pal., vol. iv, p. 



534, pi. Iviii, figs. 18, 19. 

 Veniella trigona Weller, 1907, Ibidem, p. 537, pi. lix, figs. 1-3. 



Description. " Trigonal, ventricose, concentrically sulcated ; beaks 

 long and incurved; diameter an inch and a half." Morton, 1833. 



Type Locality. New Jersey. 



Shell thick, heavy, prismatic, rudely cordate or trigonal in outline ; 

 umbones very prominent, inflated to their very apices, which are turned 

 inward and forward, and placed in the adult forms within the anterior 

 third; posterior carina strongly denned, persisting from the umbones to 

 the posterior ventral margin ; lunule very wide, differentiated by a faintly 

 incised line and the evanescence of the heavy concentric sculpture; 

 escutcheon suggested by an obscure keel running from the umbones to the 

 extremity of the dorsal margin at a distance a little more than midway 



