1206 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Streptomytilus aphaea (Hall). 



Ambonychia Aphaea Hall, 20th Rep. New York State Cab. Nat. Hist., 1868 (extras, 



1865), p. 336, pi. 14 (5), fig. 3; p. 38b; rev. ed., 1870, p. 383, pi. 14, fig. 3 — 



Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, p. 108. 

 Streptomytilus aphaea Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. Res. 



Indiana, 1904, p. 452 (gen. ref.). 

 Niagaran (Racine): Wauwatosa, Wisconsin; Bridgeport, Illinois. 



Observation. — See S. pernoides Whiteaves for a possible synonym. 



Streptomytilus edullformis (Clarke and Ruedemann). 



Mytilarca eduliformis Clarke and Ruedemann, Mem. New York State Mus., 5, 



1903, p. 47, pi. 5, figs. 8-10. 



Streptomytilus edulifornris Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. 



Res. Indiana, 1904, p. 452 (gen. ref.). 

 Niagaran (Guelph) : Rochester, New York. 



Streptomytilus pernoides (Whiteaves). 



Mytilarca pernoides Whiteaves, Geol. Surv. Canada, Ann. Rep., n. s., 14, App. F, 



1904, p. 47; Geol. Surv. Canada, Pal. Foss., 3, pt. 4, 1906, p. 255, pi. 27, 

 fig. 8. 



Niagaran: Ekwan River, Canada. 



Observation. — Probably a synonym of S. aphaea (Hall). 



Streptomytilus wabashensis Kindle and Breger. 



Streptomytilus wabashensis Kindle and Breger, 28th Ann. Rep. Dep. Geol. Nat. 



Res. Indiana, 1904, p. 452, pi. 10, figs. 11, 12. 

 Niagaran: Wabash, Indiana. 



Streptoplasma Hall. See Streptelasma Hall. 



Streptoplasma crassa Hall. See Streptelasma corniculum. 



Streptoplasma multilamellosa Hall. See Streptelasma corniculum. 



Streptoplasma parvula Hall. See Streptelasma corniculum. 



Streptorhynchus americanus Miller. See Clitambonites diversus. 



Streptorhynchus approximata James. See Strophomena vetusta approximata. 



Streptorhynchus cardinale Whitfield. See Strophomena cardinalis. 



Streptorhynchus convexum Sardeson. See Strophomena incurvata. 



Streptorhynchus deflectum Miller. See Dinorthis (Plaesiomys) deflecta. 



Streptorhynchus (Strophonella) deltoidea Hall. See Rafinesquina deltoidea 

 and Strophomena winchelli. 



Streptorhynchus (Strophomena) elongata James. See Strophomena planum- 

 bona elongata. 



Streptorhynchus elongata Mickelborough and Wetherby. See Strophomena 

 rugosa. 



Streptorhynchus filitexta Hall. See Strophomena incurvata and S. neglecta. 



Streptorhynchus hallanum Miller. See Strophomena hallie. 



Streptorhynchus(?) hallie Miller. See Strophomena hallie. 



Streptorhynchus hemiaster Winchell and Marcy. See Schuchertella subplana. 



