GENERAL INDEX. Ill 



Hybocrinus Billings III.327 



" (?) incurvus M. & ^W 111,327+* 



Hybodontiflae 11,70,91 ; VI.251 ,284,313 



Hy boclus Agassiz 11,121 ; VL285 



plicatilis Ag VI.285 



reticulatus Ag YI.291 



Hydnoceras Com ad Vin,216 



Hydreionocrinus de Koninck 11,181 



(?) verrucosus Wh. & St. J VI.528 



woodianus Kon 11,177 



Hylonomus Dawson 11,137 



Hvolithes Eiclrwald. . . '. VIII, 455 



Hyphasmopora R. Etheridge, Jr VIII, 366 



Hystricospongia Ulrica VHI.233, 245 



carbonaria Ulr VIII, 218,233, 245*,246t 



lanthina Bolten II, 362 



lanthinopsis Meek and Worthen 11,362 



Ichthyocrinidae Yni,197 



Ichthyodorulites 11,113; IV, 370; VI, 487; VII, 233 



Ichthyorachis McCoy VHI,398 



Idiotrypa Ulrich VHI.375* 



parasitica Ulr Vm,375 



Idmonea Lamouroux V11I.608 



serpens Linnaeus Yin, 330+ 



Igoceras Hall 111,387 



plicatum (Conr.) 111,387 



Illaenus Dalman in,320; VI.508 



' ' americanus Bill in, 320 



(Bumastus) barriensis Murch VI.509 



crassicauda (Wahlenb.) 111,322* 



(Bumastus) graftonensis M. & W VI, 508* 



insignis Hall VI, 510 



salteri Barrande VI, 510 



" taurus Hall IH,320* 



trentonensis Emm HI, 322 



(Bumastus) sp. indet VI, PI. XXIV.flg. 3* 



Inaduna'a VIH.193 



Insecta II, 410 ; III, 566 



Intrapora Hall VIII, 349, 394, 532 



cosciniformis (Nicholson) VIII, 532* 



puteolata Hall VIII.394,532 



(Intricaiia) clathrata Miller and Dyer VIII, 639 



( " ) reticulata Hall VIII, 639 



Inversaiia Hagenow 11,417 



Ischadites Murchison VIH, 238 



Isocardia Lamarck 11,346 



( " ) unioniformis Phill 11,346* 



Isocrinus Phillips 11,268 



Isogramma Meek and Worthen V.568 



millepuncta-a M. & W V. 566* 



Isonema Meek and Worthen Ill, 442 



depressumM. & W III,443t* 



bellatulum (Hal!) IH.443 



Isopoda II,o99 ; III, 549 



Isotelus DeKay VI, 497 



megistos Locke VI.498 



" vigilans M. & W VI, 497* 



