BRACHIOPODA. 



lens. The fossil referred to this species 

 was afterward described as S. david- 

 soni. 



melissa, Billings, 1874, Pal. Foss., vol. 2, 

 Mid. Sil. [Ety. mythological name.] 



salteri, Billings, 1874, Pal. Foss., vol. 2, 

 Mid. Sil. [Ety. proper name.] 

 Strophalosia, King, 1844, Ann. &Mag. Nat. 

 Hist., vol. 14. [Ety. stroplie, a bend- 

 ing; alos, a disc] 



horrescens, Geinitz, 1866, Carb. und Dyas 

 in Neb. Prof. Meek regarded this 

 name as a syn. for Productus nebras- 

 censis. 



numularis, Winchell, 1863, Proc. Acad. 

 Nat. Sci., Chemung Gr. [Sig. like a 

 little coin.] 



subaculeata, 5lurehison, 1845, Bui. Geol. 

 Soc. de France, Coal Meas. [Sig. 

 somewhat thorny or furnished with 

 prickles.] 

 Strophodonta, Hall, 1852, Pal. N. Y., vol. 2. 

 [Ety. strophos, bent; odous, tooth.] 



sequicostata, Swallow, 1860, Trans. St. 

 Louis Acad. Sci., Ham. Gr. [Sig. 

 equal-ribbed.] 



altidorsata, Swallow, 1860, Trans. St. 

 Louis Acad. Sci., Devonian. [Sig. 

 high backed.] 



alveata, Hall, 1863, 16th Reg. Rep., Scho- 

 harie grit. [Sig. channeled.] 



ampla, Hall, 1857, (Strophomena ampla) 

 10th Reg. Rep., Schoharie grit and 

 Cornif. Gr. [Sig. full, large.] 



arcuata, Hall, 1858, Geo. of Iowa, Ham. 

 Gr. [Sig. bent, arched.] 



becki, Hall, 1859, Pal. N. Y., vol. 3, Low. 

 Held. Gr. [Ety. proper name.] 



boonensis, Swallow, 1860, Trans. St. Louis 

 Acad. Sci., Low. Devonian. [Ety. 

 proper name.] 



cfelata, Hall, 1867, Pal. N. Y., vol. 4, 

 Chemung Gr. [Sig. sculptured.] 



callawayensis, Sw r allow, 1860, Trans. St. 

 Louis Acad. Sci., Ham. Gr. [Ety. 

 proper name.] 



callosa, Hall, 1863, 16th Reg. Rep., Scho- 

 harie grit. [Sig. having a thick shell.] 



canace, Hall, 1873, 23rd Reg. Rep., Che- 

 mung Gr. [Ety. mythological name.] 



cavumbona, Hall, 1859, Pal. N. Y., vol. 

 3, Low. Held. Gr. [Sig. having a hol- 

 low umbo.] 



cayuta, Hall, 1867, Pal. N. Y., vol. 4, 

 Chemung Gr. [Ety. proper name.] 



cincta, Winchell, 1866, Rep. Low. Penin- 

 sula Mich., Ham. Gr. [Ety. ductus, 

 girdled ; in allusion to a ridge around 

 the border of the inside of the ventral 

 valve.] 



concava, Hall, 1857, (Strophomena con- 

 cava) 10th Reg. Rep., Cornif. and 

 Ham. Gr. [Sig. concave.] 



costata, Owen, 1852, Geo. Sur. Wis., 

 Iowa and Minn., Devonian. [Sig. 

 ribbed.] 



crebristriata, Conrad, 1842, (Strophomena 

 crebristriata) Jour. Acad. Nat. Sci., 

 vol. 8, Schoharie grit. [Sig. thickly 

 striated.] 



cymbiformis, Swallow, 1860, Trans. St. 

 Louis Acad. Sci., Devonian. [Sig. 

 boat-shaped.] 



demissa, Conrad, 1842, (Strophomena 

 demissa) Jour. Acad. Nat. Sci., vol. 8, 

 Schoharie grit, Cornif., Ham. and 

 Chemung Gr. [Sig. hanging down.] 



erratica, Winchell, 1866, Rep. Low. Pen- 

 insula Mich., Ham. Gr. [Sig. wander- 

 ing, erratic] 



fragilis, syn. for Strophodonta perplana. 



geniculata, Hall, 1859, Pal. N. Y., vol. 3, 

 Low. Held. Gr. [Sig. geniculated.] 



headleyana, Hall, 1859, Pal. N. Y., vol. 3, 

 Low. Held. Gr. [Ety. proper name.] 



hemispherica, Hall, 1857, (Strophomena 

 hemispherica) 10th Reg. Rep., Scho- 

 harie Grit & Cornif. Gr. [Sig. hemi- 

 spherical.] 



hybrida, Hall, 1873, 23rd Reg. Rep., 

 Chemung Gr. [Sig. a hybrid.] 



imitata, Winchell, 1866, Rep. Low. Penin. 

 Mich., Ham. Gr. [Sig. imitating, like 

 S. insequistriata.~\ 



in?squiradiata, Hall, 1857, 10th Reg. Rep., 

 Schoharie Grit & Cornif. Gr. [Sig. 

 unequal-rayed.] 



inaequistriata, Conrad, 1842, (Strophomena 

 inaequistriata) Jour. Acad. Nat. Sci., 

 vol. 8, Cornif. & Ham. Gr., Moscow 

 shales. [Sig. having unequal stria?.] 



indentata, Conrad, (Leptama indentata) 

 1838, Ann. Rep. N. Y., Low. Held. 

 Gr. [Sig. indented.] t 



inflexa, Swallow, 1860, Trans. St. Louis 

 Acad. Sci., Devonian. [Sig. bowed, 

 made crooked.] 



intermedia, Hall, 1859, Pal. N. Y., vol. 3, 

 Oriskany sandstone. [Sig. interme- 

 diate.] 



iowensis, Owen, 1852, Geo. Sur. Wis., 

 Iowa & Minn., Devonian. [Ety. 

 proper name.] 



junia, Hall, 1867, Pal. N. Y., vol. 4, 

 Cornif., Ham. & Tully Gr., (changed 

 from textilis, in the corrigenda and 

 index). [Ety. proper name.] 



kemperi, Swallow, 1860, Trans. St. Louis 

 Acad. Sci., Devonian. [Ety. proper 

 name.] 



leaven worthiana, Hall, 1859, Pal. N. Y., 

 vol. 3, Low. Held. Gr. [Ety. proper 

 name.] 



lepida, svn. for S. nacrea. 



lincklami, Hall, 1857, 10th Reg. Rep., 

 Oriskany sandstone. [Ety. proper 

 name.] " 



magnirira, Hall, 1857, 10th Reg. Rep., 

 Oriskany sandstone. [Sig. magnifi- 

 cent.] 



magniventra, Hall, 1857, 10th Reg. Rep., 

 Oriskany sandstone. [Sig. large 

 bellied.] 



