1312 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Unclnulus septentrionalis Holtedahl. 



Uncinulus septentrionalis Holtedahl, 2d Arct. Exp. " Fram," 1898-1902, No. 32, 



1914, p. 22, pi. 8, fig. 3. 

 Helderbergian (Lower beds) : Seal Bay, Southwest Ellesmereland, Arctic America. 



Uncinulus Strickland! (Sowerby). 



Terebratula stricklandi Sowerby, Murcliison's Sil. Syst., 1839, pi. 13, fig. 19. 



Rhynchonella tennesseensis Hall (not Roemer), Trans. Albany Institute, 4, 1860, 

 p. 228; 28th Rep. New York State Mus. Nat. Hist., doc. ed., 1876, pi. 26, figs. 

 34-40. White, 2d Ann. Rep. Indiana Bu. Statis. Geol., 1880, p. 496, pi. 3, 

 figs. 2-4', 10th Rep. State Geol. Indiana, 1881, p. 128, pi. 3, figs. 2-4. 



Rhynchonella etricklandi Hall, 28th Rep. New York State Mus. Nat. Hist., 

 doc. ed., 1879, p. 165, pi. 26, figs. 34-40; llth Rep. State Geol. Indiana, 1882, 

 p. 308, pi. 26, figs. 34-40. Nettelroth, Kentucky Fossil Shells, Mem. Ken- 

 tucky Geol. Surv., 1889, p. 81, pi. 27, figs. 9-11; pi. 29, figs. 3-6. Lesley, 

 Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 901, figs. 



Uncinulus (Uncinulina) stricklandi Hall and Clajke, Pal. New York, 8, pt. 2, 1895, 

 pi. 58, figs. 38-40. 



Uncinulus stricklandi Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 290, 

 fig. 358. 



Silurian: Europe; Waldron and St. Paul, Indiana; Newsom, Tennessee (Waldrom 

 and Laurel); Louisville, Kentucky (Louisville); West Tennessee (Browns- 

 port). 



Plesiotype. Cat. No. 51356, U.S.N.M. (Nettelroth). 



Uncinulus tennesseensis (Roemer). 



Rhynchonella tennesseensis Roemer, Die Sil. Fauna West. Tennessee, 1860, p. 72, 

 pi. 5, fig. 14. Hall and Whitfield, 27th Rep. New York State Cab. Nat. Hist., 

 1875, pi. 9, figs. 24-26; Pal. Ohio, 2, 1875, p. 136, pi. 7, figs. 16, 17. Hall, 

 Trans. Albany lust., 4, 1863, p. 228 (loc. occ.). Lesley, Geol. Surv. Pennsyl- 

 vania, Rep. P 4, 1889, p. 902, figs. 



Niagaran: Perry fc Wayne, and Decatur Counties, Tennessee (Brownsport); Louis- 

 ville, Kentucky (Louisville); Yellow Springs, Ohio. 



UNIO ORTHONOTUS Conrad. See Modiolopsis orthonota. 

 UNIO PRIMIGENIUS Conrad. See Modiolopsis primigenia. 

 URASTERELLA Sturtz (part). See Stenaster Billings. 



URASTERELLA McCoy. Genotype: Uraster ruthveni Forbes. 



Urasterella McCoy, British Pal. Rocks Foss., 1854, p. 59. Hall, 20th Rep. New 

 York State Cab. Nat. Hist., 1866, p. 289; rev. ed., 1870, p. 332. McCoy, 

 Geol. Surv. Victoria, dec. 1, 1874, p. 42. Zittel, Handb. Pal., 1, 1879, p. 

 453. Nicholson and Etheridge, Mon. Sil. Foss. Girvan Dist., 1880, p. 323. 

 Sturtz, Neues Jahrb. Min. Geol., Pal., 2, 1886, p. 152; Palaeontographica, 36, 

 1890, p. 219; Verh. naturh. Ver. preuss. Rheinl., etc., 1893, pp. 40, 56. 

 Gregory, Geol. Mag., dec. 4, 6, 1899, p. 352. Schuchert, Bull. U. S. Nat. 

 Mus., 88, 1915, p. 173. 



Stenaster Billings (part), Geol. Surv. Canada, Can. Org. Rem., dec. 3, 1858, p. 

 77. Sturtz, Verh. naturh. Ver. preuss. Rheinl., etc., 50, 1893, pp. 40, 56. 



Rremeraster Sturtz, Palseontographica, 32, 1886, p. 85; ibid., 36, 1890, p. 220; 

 Verh. naturh. Ver. preuss. Rheinl., etc., 50, 1893, pp. 52, 73. (Genotype: 

 Asterlas asperula Roemer.) 



