BRADLEY: BRACHIOPODA OF THE MAQUOKETA OF IOWA. 519 



Strophomena neglecta (James). 



Strophomena Jilitexta Meek (not Hall), Pal. Ohio, 1873, 1, pt. 2, p. 83, pi. G, 



fig. 5. 

 ? Strophomena fiUtexta White, U. S. G. & G. S. W. 100th mer., 1875, 4, p. 69, 



pi. 4, fig. 8. 

 Hemipro?iites filiteiius Miller, Cine, quart, journ. sci., 1875, 2, p. 43. 

 Sireptorhynchus filitextus (part) Hall, 2d. Ann. rept. N. Y. state geol., 1883, 



pi. 42, fig. 10, 15 (not fig. 11-14); pi. 39, fig. 1-7. 

 StropJiomena filitexta Hall and Clarke, Pal. N. Y., 1892, 8, pt..l, pi. 9A, fig. 10, 



15 (not fig. 11-14); pi. 11 A, fig. 3. 

 Streptorhynchus neglecta James, Paleontologist, 1881, 5, p. 41. 

 Strophomena neglecta Winchell and Schuchert, Geol. Minn., 1893, 3, pt. 1, p. 



388. Foerste, Amer. geol., 1903, 31, p. 338. Cumings, 32d Ann. rept. 



Dept. geol. nat. res. Indiana, 1908, p. 934, pi. 38, fig. 1-lb. Foerste, 



Bull. sci. lab. Denison univ., 1912, 17, pi. 5, fig. 1, 3; pi. 7, fig. 5; pi. 9, 



fig. 1; pi. 11, fig. 10. 



All representatives of this species were found in a ^a^'ine north of 

 Clermont, Iowa, and none in the neighboring outcrops. They con- 

 form well to the types figured and described by Foerste, although the 

 average size is somewhat smaller. They all lack the vertical wrinkling 

 along the hinge-line of Strophomena vetusla. The cardinal angles in 

 all cases are acute, and no specimen shows the rectangular boxing of 

 the postero-lateral angles. 



Measurements: — Smallest specimen — width, 40 mm., length, 

 25.5 mm. Largest specimen — width; 56 mm., length, 35.5 mm. 

 Average specimen — width, 44 mm., length, 27 mm. 



Loealitij: — The Richmond at Oxford, Clarksville, Waynesville, 

 Ohio; Indiana; and the INIaquoketa at Savannah, Illinois; on 

 Manitoulin Island, Lake Huron; Anticosti; and Stony Mountain, 

 Manitoba. 



Strophomena acuta \Yinchell and Schuchert. 

 Plate 1, fig. 5. 



Strophomena neglecta var. acuta Winchell and Schuchert, Geol. Minn., 1893, 



3, pt. 1, p. 388, pi. 31, fig. 6, 7. 

 Strophomena acuta Foerste, Bull. sci. lab. Denison univ., 1912, 17, p. 115, 



pi. 7, fig. 3a-d; pi. 9, fig. 13a, b. 



Three good specimens from Clermont, Iowa, show a general simi- 

 larity to the figured types from the Maquoketa at Spring Valley, 



