SPI. STE.] 



BRACHIOPODA. 



377 



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



S, 198, Low. Held. Gr., described as 

 rthis plicata by Vanuxera in the Geo. 

 Ken. 3d Dist. N. Y., but that name was 

 preoccupied. 



varicosa, Hall, 1857, 10th Rep. N. Y. Mus. 

 Nat. Hist, p. 130, and Pal. N. Y., vol. 

 4, p. 205, Up. Held. Gr. 



venlricosa, see Nucleospira ventricosa. 



venusta, syn. for Spirifera divaricata. 



vernonensis, Swallow, 1860, Trans. St. 

 Louis Acad. Sci., vol. 1, p. 644, Wa- 

 verly or Choteau Gr. 



verneuili, syn. for S. disjuncta. 



t waldronensis, see Triplesia waldronensis. 



waverlyensis, Winchell, 1870, Proc. Am. 

 Phil. Soc., vol. 12, p. 251, Marshall Gr. 



whitneyi, Hall, 1858, Geo. Rep. Iowa, p. 

 502, Ham. and Chemung Gr. 



wortheni, Hall, 1857, 10th Rep. N. Y. 



Mus. Nat. Hist., p. 156, Ham. Gr. 

 ziczac, Hall, 1843. The name was preoc- 

 cupied by Roemer. See S. consobrina. 

 SPIRIFERINA, D'Orbigny, 1847, Consid. Zool. 

 et Geol. Sur. les Brachiopodes, Comp- 

 tes rendus des Sciences de 1'Academie 

 des Sciences. [Ety. Spirifera, a genus; 

 inus, implying resemblance.] Shell 

 transverse, valves unequally convex ; 

 with or without mesial fold and sinus ; 

 smooth or costated; beak straight or 

 recurved; area large, and interrupted 

 by a pseudodeltidium, notched near 

 the cardinal edge ; structure punctate ; 

 surface spinous; tooth on each side of 

 the fissure, supported by vertical, 

 shelly plates, the space intervening oc- 

 cupied by the cardinal muscles; me- 

 sial septum wide at the base, and taper- 

 ing to an acute blade; dorsal valve 

 with dental sockets and shelly lamellae, 

 for the support of serrated arms in the 

 form of two large spiral, horizontal 

 cones. Type S. rostrata. 



billingsi, Shumard, 1858, Trans. St. Louis 

 Acad. Sci., vol. 1, p. 294, Permian Gr. 



binacuta, Winchell, 1865, Proc. Acad. 

 Nat. Sci., p. 120, Burlington Gr. 



clarksvillensis, Winchell, 1865, Proc. Acad. 

 Nat. Sci., p. 119, Marshall Gr. 



kentuckiensis, Shumard, 1855, (Spirifera 

 kentuckiensis,) Geo. Rep. Mo., p. 203, 

 Coal Meas. 



FIG. 615. Spiriferina kentuckiensis. 



kentuckiensi var. propatula, Swallow, 

 1866, (Spirifera kentuckiensis var. pro- 

 patula,) Trans. St. Louis Acad. Sci., 

 vol. 2, p. 409, Coal Meas. 



spinosa, Norwood & Pratten. (Spirifera 

 spinosa,) 1855, Jour. Acad. Nat. Sci., 

 vol. 3, 2d series, p. 71, Kaskaskia Gr. 



spinosa var. campestris, White, 1874, Rep. 

 Invert. Foss., p. 21, and Geo. Sur. W. 

 100th Mer., vol. 4, p. 139, Carb. 



subtexta, White, 1862, Proc. Bost. Sob. 

 Nat. Hist., vol. 9, p. 8, Burlington Gr. 

 Spirigera, D'Orbigny in Comptes Rendus, t. 

 25, p. 268, syn. for Athyris. 



americana, see A. americana. 



biloba, see A. biloba. 



caput-serpentis, see A. caput-serpentis. 



charitonensis, see A. charitonensis. 



clintonensis, see A. clintonensis. 



concentrica, syn. for A. spiriferoides. 



corpulenta, see A. corpulenta. 



eborea, see A. eborea. 



euzona, see A. euzona. 



formosa, see A. formosa. 



fultonensis, see A. fultonensis. 



hannibalensis, see A. hannibalensis. 



haivni, see A. hawni. 



jacksoni, see A. jacksoni. 



maconensis, see A. maconensis. 



minima, see A. minima. 



missourwnsis, see A. missouriensis. 



monticola, see A. monticola. 



obmaxima, see A. obmaxima. 



ohioensis, see A. ohioensis. 



pectinifera, see A. pectinifera. 



plattensis, see A. plattensis. 



prouti, see A. prouti. 



reftexa, see A. reflexa. 



singleloni, see A. singletoni. 



spiriferoides, see A. spiriferoides. 

 STENOSCHISMA, Conrad, 1839, Ann. Rep. 

 N. Y., p. 59. [Ety. stenos, narrow; 

 schisma, fissure.] Writtten Stenocisma 

 by Conrad. Subtriangular, ovoid, or 

 subglobose, hinge-line short; beak of 

 ventral valve extended, attenuate, more 

 or less arcuate, and appressed upon the 

 opposite valve ; mesial fold and sinus ; 

 surface plicated, valves articulated by 

 teeth and sockets; median septum in 

 dorsal valve, on each side of which the 

 crura are supported. Type S. formo- 

 sum. Conrad' mentioned Terebratula 

 schlotheimi as the type which is now 

 the type of Camarophoria ; but, as Hall 

 shows, Conrad was mistaken in identi- 

 fying what is now known as S. formp- 

 sum, with the European Camarophoria 

 schlotheimi. 



billingsi, Hall, 1867, Pal. N. Y., vol. 4, p. 



336, Cornif. Gr. The same that Bill- 

 ings called Rhynchonella thalia, Can. 

 Jour. 1860, but the name was preoc- 

 cupied. 



carica, Hall, 1867, Pal. N. Y., vol. 4, p. 344, 



Ham. Gr. 

 Carolina, Hall, 1867, Pal. N. Y., vol. 4, p. 



337, Cornif. Gr. 



congregatum, Conrad, 1841, (Atrypa con- 

 gregata,) Ann. Rep. N. Y., p. 55, and 

 Pal. N. Y., vol. 4, p. 341, Ham. Gr. 



contractual, Hall, 1843, (Atrypa con- 

 tracta,) Geo. 4th Dist. N. Y., pi. 66, fig. 

 3a, and Pal. N. Y., vol. 4, p. 351, Che- 

 mung Gr. 



contractum var. saxatile, Hall, 1867, Pal. 

 N. Y., vol. 4, p. 417, Chemung Gr. 



dotis, Hall, 1867, Pal. N. Y., vol. 4, p. 344, 

 Ham. Gr. 



