BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 1207 



STREPTORHYNCHUS HYDRAULICUM Whitfield. See Schuchertella hydraulica. 

 STREPTORHYNCHUS MINOR Walcott. See Strophomena(?) minor. 

 STREPTORHYNCHUS NEGLECTA James. See Stropliomena neglecta. 

 STREPTORHYNCHUS NUTANS Miller. See Strophomena nutans. 

 STREPTORHYNCHUS PATENTA Hall. See Strophonella patenta. 

 STREPTORHYNCHUS PLANOCONVEXA Miller. See Strophomena planoconvexa. 

 STREPTORHYNCHUS PLANUMBONUM of authors. See Strophomena planumbona. 

 STREPTORHYNCHUS? PRIMORDIALE Whitfield. See Billingsella(?) primordialis. 

 STREPTORHYNCHUS RECTUS Miller. See Dinorthis (Plaesiomys) deflecta. 

 STREPTORHYNCHUS SINUATUM Lesley. See Strophomena sinuata. 

 STREPTORHYNCHUS (STROPHOMENA) SUBPLANA Hall. See Schuchertella subplana. 

 STREPTORHYNCHUS SUBSULCATUM Sardeson. See Strophomena scofieldi. 

 STREPTORHYNCHUS SUBTENTA Hall. See Strophomena trentonensis. 

 STREPTORHYNCHUS SUBTENTUM Lesley. See Strophomena planumbona. 

 STREPTORHYNCHUS SULCATUS Hall. See Strophomena sulcata. 

 STREPTORHYNCHUS TENUIS Hall. See Schuchertella tenuis. 

 STREPTORHYNCHUS (STROPHOMENA) VETUSTA James. See Strophomena vetusta. 



STREPTOSOLEN Ulrich and Everett. Genotype: S. obconicus Ulrich and Everett. 

 Streptosolen Miller, N. A. Geol. Pal., 1889, p. 165 (Ulrich and Everett in press). 

 Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 273. 



Streptosolen obconicus Ulrich and Everett. 



Streptosolen obconicus Ulrich and Everett, Geol. Surv. Illinois, 8, 1890, p. 274, 



pi. 4, figs. 4, 4a, b. 

 Black River (Platteville): Near Dixon, Illinois. 



STREPTOSPONGIA Ulrich. Genotype: S. labyrinthica Ulrich. 



Streptospongia Ulrich, Amer. Geol., 3, 1889, p. 235, 244. Miller, N. A. Geol. Pal., 

 1889, p. 165. 



Streptospongia labyrinthica Ulrich. 



Streptospongia labyrinthica Ulrich, Amer. Geol., 3, 1889, p. 244, fig. 8, p. 236. 

 Girvanella labyrinthica James, J. F., Jour. Cincinnati Soc. Nat. Hist., 14, pt. 1, 



1891, p. 51. 



Richmond (Arnheim) : Near Lebanon, Kentucky. 

 Holotype.Ca,t. No. 46572, U.S.N.M. 



STREPTOTROCHUS Perner. Genotype: S. rugulosus Barrande. 



Streptotrochus Perner, Syst. Sil. du Centre Boheme, pt. 1, 4, Gasteropoden, 2, 

 1907, p. 238. Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 394. 



Streptotrochus carinatus Williams. 



Streptotrochus carinatus Williams, Proc. U. S. Nat. Mus., 42, 1912, p. 395, pi. 50, 



fig. 8. 

 Silurian (Eastport): West side of Shackford Head, Moose Island, Eastport, 



Maine. 

 Holotype.C'At. No. 58444, U.S.N.M. 



