INDEX OF GENERA AND SPECIES. 



323 



Pay;e. 



Tracbycar'liuin on 



Trachyceras 110, 2;;9 



judicaricum 110, 2:!9 



var. subasperum . 110 



whitneyi 11 0, 239 



Trachyceratidaj 110, 3:J9 



Trachydomia 46 



Trach.vtritou 49,102 



vinculum 49, 102 



Trapt'zium 260,202 



bellefourchensis S60, 2G2 



micron eiiia TG, 143 



subequalis 360,202 



tnincatuin 143 



Tramatis 126, 129 



pannulua l^ti. 129 



■Tr«matocrinu8 23, |2 



flscellus 23 



Trernatodiscus 37, 42, 104 



Tremalospira 57, 193 



? imbiicata 57 



infrequens li>3 



Trial tbrusbecki 187 



Trichopteris 3;jl 



filamentosa 331 



gracilis 33 1 



Trigona rca 98, 267 



(Breviarca) exisua 98 



? aalirapnsis 93 



? ainuxtnsis 98 



cuneiformis 267 



transvei sa 267 



Trigonatse 34 



Trigoudla 100 



Trigonellitea 35 



Trigonia ... 30, 33, 92, 133, 164, 207, 209, 218, 236, 268 



alta S07 



ameiicana 164 



cerulea 36S 



conradi 33, 23 



crenulata 2r)5 



cuneiformis 207 



distans 310 



emoryi 2!8 



eufaulensis 268 



evansana 17 



evansi 92 



lorentii 337 



montauaensis 1 04 



mortoni SfiS 



pandi(03ta 30 



quadraugularis 336 



texana 31S 



syriaca 307, 209 



Trigoniidaj 30, 32, 33, 111, 132, 133, 208 



Trigonotreta 31, 57, 58, 89 



Trilobita 31,39,90,179,260,261 



Trilobites 28, 148, 149, 249 



Trimerella 80 



grandis 80 



oliioensis 80 



Triplesia 80, 19i) 



calcifera 190 



ortoni 80 



Triton 216 



Pago. 



TritonidflB 102 



Tritonidea 103 



Tritonifusus migrans 50 



Mpnniliiieatua 49 



Tritonium diegoensis 222 



Trochactaeon 29 



Trocha ttieonina 29 



Trorbidse 102, 180,264 



Trocbita 212,214,217 



antiqua 67 



carbonaria 40 



costellata 317 



diegoana 313,214 



trochiformls 221 



Trochoceras 39,79 



baeri 39, 79 



Trochonema 5j,f^ 



tricarinata 67, 80 



umbilicata 55 



Trochus 180 



Itnticularis ? 248 



(Oxystele) enryostomus ISO 



Tropidina 35,107 



Tropidisous 106 



Tropidocardinm 90 



Tropidoleptus 58 



carinatus 58 



TubaTbella 48 



Tubicola 35, 105, 135 



Tubipora lamellosa 347 



Tubulostium dicthautl 15'i 



Tudicola ? dnkotonsis 49 



(Pyropsis) bairdi 49 



Talotoma 138, 162 



thompsoni ...138, 162.109 



Turbinolia 218 



goldfnssil 220 



stokesii 220 



texana 318 



Turbo 227,258 



glabra 50 



guadaluponsis 358 



helicinus ? 258 



line.itus 221 



mudgeanus 70 



nebrascensis 14 



paludinaeformis 331 



tenuilineata 48 



tenuilineatus 14 



tcxanus 35S 



Turbouilla .\ . 134, 143 



(Chemnitzia?) coalvillmsis 77, 143 



melanopsis 134 



maclurii 220 



Turnus 101,137 



(Goniochasma) stimpsoni 101 



sphenoidtus 137 



(Xylop liagella) elegantulus HI 



Turricula 103 



Turrilites 49 



cheyennensis 49 



(Ilelicocera^) cocbleatus 18 



?umbilicatus 18 



Turris 103 



minor 103 



