469 



Costa Rica Miocene — Olsson 



297 



Drillia pelagia 72 



peripla 71 



pharcida 65 



Simpson i 66 



subsida 73 



thea 66 



theobroma S 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 



f renulata 167 



Embolus inflatus 44 



Epicynia multicarinata. 161 



Episiphon 38 



Epitonium angulatum.. loi 



clathrum 102 



cochlea 103 



contorquatum 104 



denticulatum 102 



gal vestonense 1 03 



lineatum 102 



mitchelli 103 



modestum 1 04 



multilinif erum / 11 



multistriatum 104 



munistriatum / 10 



nitidellum 102 



sayanum 102 



scipio 102 



sericifila 103 



subacutum / ir 



tenue 102 



turriculum 103 



Erato laevis 114 



maugeria 114 



Ervilia lignitica j 21 



polita 22 



Ethalia reclusa 162 



solida 162 



suppressa 162 



Eubala 73 



Eulima 105 



Eulimella unif asciata 107 



Eumeta 1 24 



Eunaticina semisulcata 151 



Eupleura caudata 99 



var. sulcidentata 99 



muricif ormis 99 



Euspira 147 



Eutrochus 155 



Exilia pergracilis 7, 27 



F 



Fasciolaria distans 83 



gigantea 83 



gorgasiana /i 277 



macdonaldi 1/ 278 



meekiana 84 



tulipa /6 83, 205, 277 



Favartia cellulosa 96 



var. levicula 97 



intermedia 97 



nuceus 96 



Fissiuentalium 36 



Fissurella alternata 166 



asturiana 1 67 



barbadensis 1 65 



Fissurellidea f asciata 1 65 



Fissuridea alternata 166 



cay enensis 



Fissurisepta 167 



Flabellum conoideum ,....27 



Fusinus gepynotus 85 



alcimus 84 



amiantus 84 



amphiurgus 85 



