GENERAL INDEX. 149 



Trigonodus Newberry and Worthen 11,111 



( " major N. & W.) 11.112*; vn,184* 



minor N. & W H, 112* 



Trimerella Billings 111,551 



Tricoelocrinus Meek and Worthen V.507; VI.521 



obliquatus (Roem.) VI, 521 



varsoviensis Worthen : VI.521 



woodman! M. & W V, 506* 



(Trigonotreta Koenig) 111,384,398,414 



( ) engelmanni M. & W Ill, 398* 



( ) hemicychis M. & W 111,399* 



( " ) oblata (Sby.) Bronn n,298 



( ) paradoxa (Schloth) 111,415* 



( ) perextensa M. & W HI, 414* 



( ) perlamellosa (Hall) Ill, 384* 



( ) striata Martin 111,532; VI.523 



Trilobita. 111,299,320,363,390,416,447,460; V.525,612; VI.497 



Trimerella Billings Ill, 351 



" (?) conradi (Hall) 111,351 



TrochacUeon Meek 11,369 



ellipticus (Zekeli) H.368 



obtusus (Zekeli) 11,368 



reynauxianus (d'Orb.) II, 368 



Trochus Linnceus IH,316 



( " ) lenticularis Sby m,316 



( " ) missonriensis Swall 11,36V 



Trochonema Salter 111,314 



pauper Hall in,361 



umbilicatum (Hall) HI, 314* 



Troostocrinus Shumard V, 607 ; VII.349,363 



reinwardti Troost VII, 357 



(?) woodman! M. & W V.506* 



Tropidodiscus curvilineatus (Conrad) 11,160 



Tropidoleptus Hall HI. 427 



carinatus (Conrad) Ill, 427* 



Tropidopora Hall <. VIII,402 



Trygon Adanson VI.312 



Tubuliporidse Busk VIII,3t>0,367,368,688 



Turbonilla Risso 11,377 



Turritella Lamarck 11,382 



" (??) stevensoni M. & W 11,382* 



Unitrypa Hall Vni,353,356, 396.534, 679 



lata Hall VHL396 



(Uperocrinus Meek and Worthen) 11,147,150,151 



Uphantaenia Vanuxem VICE, 216,237 



" chemungensis Vanux Vin,237 



dawsoni Whitfleld. Vm,218 



Vanuxemia Billings . ...in,297 



dixonensis M. & W '. 111,297* 



Vaticinodus St. John and Worthen , VH.ei, 80 



" (?) carbonarius St. J. & W VII.88* 



discrepans St. J. & W VII.81,83* 



" (?; lepis St J. & W VH.88* 



" (?) similis St. J. & W VH.86* 



" (?) simplex St. J. & W VIL84* 



vetustus St. J. & W VH.81,82* 



