STR. SYN.] 



BRACHIOPODA. 



FIG. 623. Strophomena 

 rugosa. 



plicata, syn. for Streptorhynchus sub- 

 tentum. 



plicifera, Hall, 1847, (Leptsena plicifera,) 

 Pal. N. Y., vol. 1, p. 19, Chazy Gr. 



pluristriata, syn. for Strophodonta per- 

 plana. 



profunda, see Strophodonta profunda. 



punctulifera, see Strophonella punctulifera. 



pustulosa, syn. for Productella truncata. 



radiata, see Streptorhynchus radiatum. 



recta, see Streptorhynchus rectum. 



rectilateris, syn. for Strophodonta vari- 

 striata. 



reticulata, Shaler, 1865, Bulletin No. 4, 

 M. G. Z., Anticosti Gr. Not denned 

 so as to be recognized. 



rhomboidalis, Wilckins, 1769, (Conchites 

 rhomboidalis,) Nachrict von Seltenen 

 Verst., p. 77. This species ranges from 

 the Trenton Gr. to the Keokuk, regard- 

 ing S. tenuistriata, S. depressa, and S. 

 rugosa as varieties only. The type, 

 however, is the Devonian form. 



rugosa, Dai- 

 man, 1827, 

 (Leptsena 

 rugosa,) 

 Vet. Acad. 

 Handlinger, 

 p. 106, and 

 Pal. N. Y., 

 vol. 3, p. 

 195, Niagara 

 and Low. 

 Held. Gr. This form is supposed to be 

 the type of Rafinesque's genus Stropho- 

 mena. The species is usually regarded 

 as merely a variety of S. rhomboidalis. 



rugosa var. ventricosa, Hall, 1857, (S. de- 

 pressa var. ventricosa.) 10th Rep. N. Y. 

 Mus. Nat. Hist., p. 53, and Pal. N. Y., 

 vol. 3, p. 417, Oriskany sandstone. 



setigera, see Chonetes setigerus. 



semiovalis, Conrad, syn. for Leptsena 

 sericea. 



semwvalis, Shaler. The name had been 

 twice preoccupied. 



squamula, James, 1874, Gin. Quar. Jour. 

 Sci., vol. 1, p. 335, Hud. Riv. Gr. 



striata, see Strophodonta striata. 



subdemissa, syn. for Strophodonta demissa. 



subplana, see Streptorhynchus subplanum. 



subtenta, see Streptorhynchus subtentum. 



syrtalis, syn. for Chonetes carinatus. 



tenuilineata, Conrad, 1842, Jour. Acad. 

 Nat. Sci., vol. 8, p. 259, and Pal. N. Y., 

 vol. 1, p. 115, Trenton Gr. 



tenuistriata, Sowerby, 1839, (Leptsena 

 tenuistriata,) Murch. Sil. Syst., p. 636, 

 and Pal. N. Y., vol. 1, p. 108, Low. Sil. 



textitts, see Strophodonta junia. 



thalia, see Streptorhynchus thalia. 



transversalis, see Leptsena transversal is. 



trilobata, Owen, 1852, (Leptsena trilobata,) 

 Geo. Sur. Wis., Iowa, and Minn., p. 584, 

 Trenton Gr. 



tullia, Billings, 1874, Pal. Foss., vol. 2, p. 

 29, Low. Devonian. 



undulata, syn. for S. rhomboidalis. 



undulosa, Conrad, 1841, Ann. Rep. N. Y., 

 p. 54, Low. Held. Gr. 



unicostata, Meek & Worthen, 1868, Geo. 

 Sur. 111., vol. 3, p. 335, Hud. Riv. Gr. 



varistriata, see Strophodonta varistriata. 



ventricosa, Shaler, (Brachyprion ventrico- 

 sum.) The name was preoccupied. 



wisconsinensis, Whitfield, 1880, Ann. 

 Rep. Geo. Sur. Wis., p. 61, and Geo. 

 Wis., vol. 4, p. 263, Hud. Riv. Gr. 



woolworthana, see Streptorhynchus wool- 



worthanum. 



STROPHONELLA, Hall, 1879, 28th Rep. N. Y., 

 Mus. Nat. Hist., p. 153. [Ety. diminu- 

 tive of strophos, twisted.] Distinguished 

 from Strophodonta by the resupinate 

 character, the strong and more re- 

 stricted muscular impression of the ven- 

 tral valve and strong median septum 

 of the dorsal valve ; and from Strepto- 

 rhynchus by the cardinal process, the 

 crenulations on the inner margins of 

 the cardinal area, and the solid area, 

 with sometimes a triangular deltidium. 

 Type S. semifasciata. 



ampla, Hall, 1857, (Strophomena ampla,) 

 10th Rep. N. Y., Mus. Nat. Hiet., p. Ill, 

 and Pal. N. Y., vol. 4, p. 93, Up. 

 Held. Gr. 



ceelata, Hall, 1867, (Strophodonta cselata,) 

 Pal. N. Y., vol. 4, p. 112, Chemung Gr. 



cavumbona, Hall, 1857, (Strophodonta ca- 

 vumbona,) 10th Rep. N. Y. Mus. Nat. 

 Hist., p. 51, and Pal. N. Y., vol. 3, p. 

 187, Low. Held. Gr. 



leavenworthana, Hall, 1857, (Stropho- 

 donta leavenworthana,) 10th Rep. N. Y. 

 MUP. Nat. Hist., p. 53, and Pal. N, Y., 

 vol. 3, p. 189, Low. Held. Gr. 



punctulifera, Conrad, 1838, (Lepttena 

 punctulifera,) Ann. Rep. N. Y., p. 117, 

 and Pal. N. Y., vol. 3, p. 188, Low. 

 Held. Gr. 



FIQ. 624. Strophonella punctulifera. 



reversa, Hall, 1858, (Strophodonta re- 

 versa,) Geo. Rep. Iowa, p. 494, Ham. Gr. 



semifasciata, Hall, 1863, (Strophodonta 

 semifasciata,) Trans. Alb. Inst., vol. 4, 

 p. 210, Niagara Gr. 



SYNTRIELASMA, Meek & Worthen, 1865, Proc. 

 Acad. Nat. Sci., p. 277. [Ety. syn, to- 

 gether; treis, three; elasma, plate.] 

 Shell thin, gibbous ; valves articulated 

 by teeth and sockets; hinge-line short; 

 area higher in the ventral valve than 



