469 



Costa Rica Miocene — Olsson 297 



Drillia pelagia 72 



peripla 71 



pharcida 65 



Simpson i 66 



subsida 73 



thea 66 



theobroma 8 240 



tiara 72 



tristicha 65 



vaningeni 186 



venusta 7 195, 200, 233 



verrilli 66 



zooki 186 



E 



Echinella nodulosa 137 



Echinochama antiquata J/.. 199, 390 



trachyderma 391 



yaquensis j/ 194, 391 



meyeri j 24 



Egerella subtrigonia 7 



Emarginula compressa 167 



frenulata 167 



Embolus inflatus 44 



Epicynia multicarinata 161 



Episiphon 38 



Epitonium angulatum.. loi 



clathrum 102 



cochlea 103 



contorquatum 104 



denticulatum 102 



galvestonense 103 



lineatum 102 



mitchelli 103 



modestum 104 



multiliniferum / 11 



multistriatum 104 



munistriatum / 10 



nitidellum 102 



sayanum 102 



scipio 102 



sericifila 103 



subacutum / 11 



tenue 102 



turriculum 103 



Erato Isevis 114 



maugeria 114 



Ervilia lignitica j 21 



polita 22 



Ethalia reclusa 162 



solida 162 



suppressa 162 



Eubala ; 73 



Eulima 105 



Eulimella unifasciata 107 



Eumeta 124 



Eunaticina semisulcata 151 



Eupleura caudata 99 



var. sulcidentata 99 



muriciformis 99 



Euspira 147 



Eutrochus.... 155 



Exilia pergracilis 7, 27 



F 



Fasciolaria distans 83 



gigantea 83 



gorgasiana 11 277 



macdonaldi // 278 



meekiana 84 



tulipa 7(5 83, 205, 277 



Favartia cellulosa 96 



var. levicula 97 



intermedia 97 



nuceus 96 



Fissidentalium 36 



Fissurella alternata 166 



asturiana 167 



barbadensis 165 



Fissurellidea fasciata 165 



Fissuridea alternata 166 



cayenensis 



Fissurisepta 167 



Flabellum conoideum ,....27 



Fusinus sepynotus 85 



alcimus 84 



amiantus 84 



amphiurgus 85 



