22() HTLLETIN rC, UNITED 8TATES NATIONAL MUSEUM. 



38156. Dieconeura rigida Scudder. Holotype. 



Upper Coal Measures. Campbells Ledge, near Pittston, 

 Pennsylvania. 



vSciulder, Mem. Bo.ston vSoc. Nat. Hist., Ill, 1885, p. 336, pi. 29, 

 fig. 10; F'oss. Insects N. America, I, 1890, p. 300, pi. 16, fig. 4. 



3535S. Dielasma bovidens ( Morton )? Plcsiotype. 



Upper Carboniferous. Rock Creek, Elk Mountains, Col- 

 orado. 



Girty, Prof. I'aj). No. 16, U. vS. (ieol. vSurv., 1903, p. 409, j)!. 7, 

 figs. II, 1 1 a. 



See Terebratula bovidens. 



35179. Dielasma Utah ( Hall and Whittield ). Holotype and 



15239. ple.siotype. 



Madison (Mi.ss.). Crowfoot Ridge, Gallatin Range, Yel- 

 lowstone National Park. 

 Waverlv (Miss.). Cottonwood divide. Wahsatch Range, 

 Utah. 



Girty, Men. XXXII, I't. II, V. S. (ieol. Surv., 1899, p. 544, pi. 69, 

 figs. 6a, 6b, 6c. 



vSee Terebratula Utah. 



Dikellocephalus. See Dicellocephalus. 



107135. Dillwynella errata Guppy. Holotype. 



Upper Oligocene. Pointapier, Trinidad, West Indies. 

 Guppy, Proc. V. vS. Nat. Mus., XIX, 1896, p. 323, pi. 27, fig. 2. 



5947. Dillwynella naticoides (Lea). Ple.siotypes. 



Claibornian (P^ocene). Claiborne, Alabama. 



Dall, Trans. Wagner Free Inst. vSci. Phila., Ill, Pt. II, 1892, 

 p. 418, pi. 18, fig. 3. 



41641. Dilobella typa Ulrich. Cotypes. 



Black River (Ord.). St. Paul, Minnesota. 



Ulrich, Geol. and Nat. Hist. vSurv. Minn., Final Kept., Ill, Pt. II, 

 1894, p. 673, pi. 46, figs. 30-34. 



4797. Diloma ( Chlorodiloma ) ruderata Dall. Holot3pe. 



Miocene. Penjinsk (Uilf, vSiberia. 



Dall, Proc. T'. vS. Nat. RIus., XVI, 1893, p. 476, ])I. 56, fig. 3. 



113799. Dimya grandis Dall. Cotypes. 



Oligocene. Potrero, Rio Amina, Santo Domingo. 



Dall, Proc. U. vS. Nat. Mus., XIX, 1896, p. -,28; Trans Wagner 

 Free Inst. vSci. Phila., Ill, Pt. IV, 1898, p. 764, pi. 3,5, fig. 8. 



45548. Dinobolus ? parvus Whitfield. PlastotyiK\ 



Trenton (Ord. ). Wykoff, Minnesota. 



Winchell and Schuchert, Geol. and Nat. Hi.st. Surv. Minn., I'inal 

 Rept., Ill, Pt. I, 1893, p. 356, figs. A and C. 



