630 BULLETIN 53, ONITED STATES NATIONAL MUSEUM. 



4331 1. Streblotrypa nicklesi Ulrich. Cotypes and figured sections. 

 Chester (Miss.)- Kaskaskia, Illinois. 



Ulrich, Geol. vSurv. 111., VIII, 1890, p. 667, pi. 71, figs. 9-9C. 



43481. Streblotrypa Striata Ulrich. Holotype. 



Upper Waverly (Miss.). Richfield, Ohio. 



ITlricli, Bull. Denison Univ., IV, 1888, p. 87, pi. 14, figs. 12, 12a. 



157842. Strepsidura pachecoensis Stanton. Holotype. 



Uower Tejon (Eocene). One mile north of Pacheco, 

 California. 



Stanton, Seventeenth Ann. Rept. U. S. Geol. Surv., Pt. I, 1897, 

 p. 1045, pi. 67, fig. 2. 



33322. Streptacis whitfieldi Meek. Holotype. 



Upper Carboniferous. Danville, Illinois. 



Meek, Proc. Acad. Nat. Sci. Phila., 1871, p. 173. — Meek and Wor- 

 then Geol. Surv. 111., V, 1873, p. 596, pi. 29, fig. i. 



42538. Streptelasma breve Ulrich. Cotypes. 



vStones River (Ord. ). Big Spring, near Fountain, Minne- 

 sota. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. I, 

 1S93, p. 92, figs. 7a-d. 



42557. Streptelasma parasiticum Ulrich. Holotype. 



Black River (Ord. ). Minneapolis, Minnesota. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., Final Rept, III, Pt. I, 



if^gs. p- 89. fig- 6. 



27737. Streptelasma waynense (Safford). Plesiotj^pes. 



341 14. Helderbergian (Lower Dev.). Big vSandy River, Benton 



County, Tennessee, and Atoka quadrangle, Indian 



Territory. 

 Girty, Nineteenth Ann. Rept. U. S. Geol. Surv., 1900, p, 555. 



1 379 1. Streptorhynchus chemungensis (Conrad). Plesiotype. 



Middle and Upper Devonian. Eureka District, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 117, pi. 13, figs. 

 7, 16. 



=Schucliertella chemungen.sis. 

 See Orthothetes chemungensis. 



1 431 3. Streptorhynchus crenistria (Phillips). Plesiotype. 



Uower Carboniferous. Eureka District, Nevada. 



Walcott, Mon. VIII, U. vS. Geol. vSurv., 1884, p. 279, pi. 18, fig. 14. 

 =:Orthotetes keokuk. 



1422 1. Streptorhynchus equivalvis and inequalis Hall and Whit- 

 field. Plesiotypes. 

 Waverly (Miss.). Ogden and lyOgan Canyon, Utah. 



Hall and Whitfield, Rept. U. S. Geol. Expl. 40th Par., IV, Pt. II, 

 1877, p. 252 (as equivalvis), pi. 4, figs, i, 2 (as inequalis). 



=Schuchertella inequalis. 

 See Orthothetes iusequalis. 



