1128 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Rhynchotreta thebesensis inultistriata Savage. 



Rhynchotreta thebesensis var. multistriata Savage, Bull. Geol. Surv.,23, 1913^ 



p. 81, pi. 4, figs. 21, 22. 

 Upper Medinau (Edgewood): Near Thebes, Illinois. 



Rhynchotreta quadriplicata Miller. See Rhynchotrema inequivalve. 



Rhynchotreta simplex Foerste. 



Rhynchotreta simplex Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 94, 



pi. 3, fig. 46A, B. 

 Upper Med inan (Brassfield): Clifton, Tennessee. 



Rhynchotropis Meek. See Whitella Ulrich. 



Rhynobolus Hall. See Rhinobolus Hall 



Rhysophycus Roemer. See Rusophycus Hall. 



RHYTIMTA Ulrich. Genotype: R. producta Ulrich. 



Orthodesma Whitfield (not Hall and Whitfield), Jour. Cincinnati Soc. Nat. Hist., 



1,1878, p. 139.— Miller, idem., 4, 1881, p. 76. 

 Sedgwickia Whitfield (not McCoy), ibid., 1, 1878, p. 140. 

 Rhytimya Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 618; Geol. Surv. Ohio, 7, 



1893, p. 688.— Miller and Faber, Jour. Cincinnati Soc. Nat. Hist., 17, p. 140.— 



Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 984. — Grabau 



and Shimer, N. A. Index Fossils, 1, 1909, p. 526. 



Rhytimya byrnesi (Miller). 



Orthodesma "byrnesi Miller, Jour. Cincinnati Soc. Nat. Hist. ,-4, 1881, p. 76, pi. 1, 



figs. 7a-b. 

 Rhytimya byrnesi Ulrich, Geol. Surv. Ohio, 7, 1893, p. 689, pi. 56, figs. 4, 5 — 



Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1908, p. 1019, pi. 48, 



figs. 3-3a. 

 Richmond: Richmond, Indiana (Whitewater); Weisburg, Indiana, and Blan- 



chester, Ohio (Waynesville). 

 Plesiotype.— Cat. No. 46298, U.S.N.M. 



Rhytimya compressa Ulrich. 



Rhytimya compressa Ulrich, Geol. Surv. Ohio, 7, 1893, p. 692, pi. 56, fig. 13. 

 Maysville (Fairmount): Cincinnati, Ohio, and vicinity. 

 nolotype.—G&t. No. 46299, U.S.N.M. 



Rhytimya convexa Ulrich. 



Rhytimya convexa Ulrich, Geol. Surv. Ohio, 7, 1893, p. 691, pi. 56, figs. 2, 3. 

 ' Maysville (Fairmount) : Cincinnati, Ohio, and vicinity. 

 Holotype.— Cat. No. 46300, U.S.N.M. 



Rhytimya einma (Billings). 



Cyrtodonta Emma Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 150, fig. 

 130 (adv. sheets, 1862).— Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. 

 Canada, 1866, p. 13 (loc. ref.). 

 Cypricardites Emma Miller, N. A. Geol. Pal., 1889, p. 476 (gen. ref.). 

 Rhytimya emma Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 619 (gen. ref.). 

 Richmond (English Head and Charleton): English Head, etc., Anticosti. 



Rhytimya faberi (Miller). 



Orthodesma faberi Miller, N. A. Geol. Pal., 1889, p. 497, fig. 873. 

 Richmond: Versailles, Indiana. 



