NO. 6 OYSTERS OF THE LOPHA LUGUBRIS GROUP KAUFFMAN 43 



U.S.N.M. 20255 ; new hypotypes, U.S.N.M. 8354, 22008a, b, 22210a, 

 b, 22211, 132154-132168 inclusive, 132174, 132198, 132258, 

 132285; U.M.M.P. 43463-43465 inclusive, 43470-43472, inclusive. 

 43476, 43484, 43486, 43487. Measured specimens, unfigured, 

 U.S.N.M. 22210c, 132169-132173 inclusive, 132175-132197 inclusive, 

 132199-132210 inclusive: U.M.M.P. 43460-43462 inclusive, 43467- 

 43469 inclusive, 43473-43475 inclusive, 43477, 43488, 43489, 43491. 

 Specimens from the upper Codell Sandstone questionably referred 

 to this species, U.S.N.M. 132211, 132212. 



LOPHA BELLAPLICATA BELLAPLICATA (Shumard) 



Plate 3, figures 1-18 ; plate 4, figures 1-8 ; plate 5, figures 1-15 ; 

 plate 6, figures 7-24; plate 8, figures 10, 11 



Ostrea bellaplicata Shumard, Trans. St. Louis Acad. Sci., vol. 1, p. 608, 1860. — 

 White, 4th Ann. Rep. U. S. Geol. Surv., p. 292, pi. 47, figs. 1, 2, 3, 1884.— 

 Cragin, 4th Ann. Rep. Geol. Surv. Texas, p. 199, 1893. — Bose, Algunas 

 faunas del Cret. Sup. Coahuila, p. 48, 1913. — Winton, Univ. Texas Bull. 

 2544, p. 62, pi. 8, fig. 5, 1925. 



Ostrea (Alectryonia) bellaplicata White, 11th Ann. Rep. U. S. Geol. Geogr. 

 Surv. Terr. Idaho and Wyoming, pp. 276, 277, pi. 4, figs. 3a, b; pi. 8, 

 figs. 2a, b, 1879. 



Ostrea (Alectryonia) blackii White, Proc. U. S. Nat. Mus., vol. 2, p. 293, pi. 4, 

 figs. 1, 2, 1880; 12th Ann. Rep. U. S. Geol. Geogr. Surv. Terr. Wyoming 

 and Idaho, pt. 1, pp. 11, 12, pi. 14, figs, la, b; pi. 17, fig. 5a, 1883. 



Ostrea blackii White, 4th Ann. Rep. U. S. Geol. Surv., p. 292, pi. 45, fig. 1 ; 

 pi. 46, fig. 2, 1884. 



Ostrea lugubris Conrad, Stanton, U. S. Geol. Surv. Bull. 106, pp. 58, 59, pi. 4, 

 figs. 6-10, non figs. 1-5, 1893 [1894].— Logan, The Univ. Geol. Surv. 

 Kansas, vol. 4, pt. 1, pp. 445, 446, pi. 91, figs. 6-10, 1898.— Hill, 21st Ann. 

 Rep. U. S. Geol. Surv., pi. 40, fig. 9, 1901. — Herrick and Johnson, Bull. 

 Denison Univ. Sci. Lab., vol. 40, p. 202 (in part), 1900. — Johnson, School 

 of Mines Quart., vol. 24, No. 2, pp. 186, 187 (in part), 1903a; Columbia 

 Univ. Contr. Geol. Dept., vol. 10, No. 90, Geol. of the Cerrillos Hills, New 

 Mexico, p. 114 (in part), 1903b. — Shimer and Blodgett, Amer. Journ. 

 Sci. Arts, 4th sen, vol. 25, p. 61 (in part), 1908. — Hopkins, Powers, 

 Robinson, U. S. Geol. Surv. Bull. 736, pi. 3, figs. 1, 2, 1923.— Adkins 

 and Lozo, Stratigraphy of the Woodbine and Eagle Ford, Waco Area, 

 Texas, pi. 5, fig. 1, 1951. 



Alectryonia lugubris, Adkins, Handbk. Texas Cret. Foss., p. 104 (in part), 

 pi. 16, fig. 5; pi. 24, figs. 8, 9, 1928. Listed on pis. 16, 24, as A. lugubris 

 (bellaplicata) . 



Description 



Material. — Approximately 400 well-preserved specimens (measured) 

 from localities in Texas, New Mexico, and Colorado, including large 



