467 Costa Rica Miockne — Olsson 295 



Cuvierina columnella ...44 



Cyathodonta gatunensis "383 



Cyclostrema affine 161 



pompholyx 161 



regulosum 160 



trochoides 161 



Cylichna bidentata 205c 



deKayi 7 



meyeri 26 



Cyclinella beteyensis 414 



gatunensis 187 



kroyeri 191 



subquadrata 191 



var. quitana J4 415 



Cylichnella bidentata 50 



var. galvestonensis 50 



triticum-tritonis 206c 



Cylindrobulla beaui 52 



Cymatium chlorostomum 116 



cynocephalum , 116 



gracile 116 



olearium 116 



Cymatosyrinx centimata 67 



moseri 67 



Cyphoma gibbosa 112 



Cyprsea alminatensis ij 312 



cinerea 75 113, 312 



dominicensis 196, 312 



estellensis 2 14 



exanthema 113 



henekeni 186, 196 



parisimina 75 .....311 



smithi 15 



spurca 113 



Cypraecassis 118 



Cythara heptagona 186, 195 



terminula, var. costaricen- 



sis 8 249 



Cytharella cymella 73 



galvestonensis 73 



limata 8 249 



Cytherea alternata 408 



blandiana 200 



dariena 406 



juncea 408 



tarquina 412 



D 



Daphnella hormophora 73 



leucophlegma 73 



limacina 73 



Defrancia chyta ...72 



perpauxilla 72 



Dentalium antillarum 35, 36 



bartletti , 36 



bocasensis 18 338 



callipeplum 37 



callithrix 36 



ceras 36 



ceratum 35 



compressum 39 



didymum 39 



disparile 35 



eboreum 37 



ensiculus £S 



filuni 38 



floridense 339 



gouldii 34 



laqueatum 34 



leptum 37 



matara 37 



mediaviaense 26 



meridionale 36 



ophiodon 39 



perlongum 38 



pressum 39 



pseudohexagonum 35 



quadrangulare 39 



rebeccaensis 34 



semistriolatum 37 



sericatum 37 



sexangulare 34 



