SCIENTIFIC INDEX. 



Ixxiii 



angularis, 182, 180-184. 



var. intermedia, 183, 180, 184. 



basalis, 180. 



cribrosa, 184, 180-182, 185. 



dumosa, 181, 180, 182. 



exigua, see explanation to plate xm. 



flabellata, 180. 



frondifera, 183, 151, 180, 184. 



interstincta, 180-182. 



proavia. 180. 



rigida, 180,181,182. 



undulata, 180. 

 Stictoporidce, 12-1. 

 Stictotrypa, 106, 109, 162. 

 Stigmaria, 2. 

 Stomatopora, 115, 102, 107, 108, 116, 117, 119-121. 



dichototna, 115. 



elongata, 117. 



inflata, 117,115,118, 119. 



proutana, 117,109,115, 116. 



tenuissima, 116, 117. 



turgida, 118, 116. 

 Streblotrypa, 106, 110. 

 Streblotrypidse, 106. 

 Streptelasma, 87, 88-90. 



breve, 92*. 



corniculum, OO, 87, 88, 93. 



crassa, 91, 90, 



expansa, 87. 



multilameltosa, 91, 90. 



parasiticum, 89*. 



parvula, 91, 90. 



profundum, 88, 87, 89, 90, 93, 255. 



rusticum, 93, 87. 

 StreptelasmidEe, 87. 

 Streptorhynclius americanus, 378. 



deflectum. 423. 



deltoidea, 403, 394. 



elongata, 390. 



filitexta, 385, 388. 



neglecta, 388. 



planumbona, 390. 



rectits, 422. 



substdcatum, 398. 



subtenta, 389. 

 Stricklandinia, 383. 

 Stromatopora, 95. 



compacta, SO. 

 Stromatotrypa, 3O1, 290, 302. 



ovata, 3O2, 321. 

 Strophomena, 384,371,389,391, 398-400, 400.410,424. 



alternata, 405, 401, 402, 404. 

 var. loxorhytis, 407. 



angulata, 405. 



anticostiensis, 405. 



billingsi, 397*, 385, 395, 424. 



camerata, 403. 



cardinalis, 399, 385. 



convexa, 385, 387. 



deflecta, 422, 398. 



deltoidea, 403, 401. 



elongata, 390, 392. 



emaciata, 399, 385, 400. 



filitexta, 385, 387, 388. 



fluctuosa, 395, 385, 392, 394, 396. 



halli, 410. 



halliana, 385. 



hecuba, 385. 



incrassata, 401, 403. 



incurvata, 385, 335*, 387-390, 392-394. 



inquassa, 403. 



kingi, 407. 



minnesotensis, 401. 



minor, 385. 



neglecta, 388, 385, 387, 393, 394. 

 var. acuta, 388, 385, 389. 



nitens, 413, 410. 



nutans, 385, 392-394, 396, 397. 



planoconvexa, 385. 



planodorsata, 393, 385. 



planumbona, 390, 392. 



plicata, 393, 389. 



recta, 422, 397, 398, 424. 



rugosa, 39O, 384, 385, 389-394, 386. 

 var. subtenta, 393, 385, 389. 



scofleldi, 398, 385, 399, 400. 



septa ta, 39O, 115, 385, 393. 



sericea, 414. 



sinuata, 399, 385. 



subtenta, 389, 393. 



sulcata, 399, 385. 



thalia, 385. 



trentonensis, 389, 385, 390, 393, 394, 399, 400. 



trilobata, 395, 334, 385, 404. 



unicodtata, 411. 



vetusta, 389, 385. 



winchelli, 394, 393, 396. 



wisconsinensis, 389, 385, 393. 

 Strophomems rugosa, 390. 

 StrophomenidcB, 384, 385. 

 Strophonella deltoidea, 394, 403. 

 Strotopora, 107, 110, 



Sub-Carboniferous, Bryozoa, 110; ferns, 6. 

 Suessiinse, 469. 

 Sunflower coral, 59. 

 Superficial aperture, 99. 

 Synocladia, 106. 

 Synopsis, American species of Ischadites, 65; 



American species of Receptaculites, 59. 

 Syringopora, 84. 



Tabula, 98. 



Tasniodictya, 106, 110, 162. 

 Tajniopora, 106, 110. 

 Tectulipora, 106, 110. 

 Telotremata, 458. 

 Terebinthineas, 5. 

 Terebratellid, 472. 

 Terebratula boreal is, 380. 



lynx, 4l>7. 



melonica, 472. 



Terebratulidae, 471, 470, 472. 

 Terebratulites biforatus, 454, 455. 

 Terminology, Brachiopoda, 335; Bryozoa, 98. 

 Tertiary, Bryozoa, 111; flora at base, 4; flora, 7. 

 Testce pineiformis minusculce, 30 

 Testa?, tuberosce, 40. 

 Tetracladina, 79. 

 Tetractinellidae, 73. 



