47^ Bullp:tin 39 299 



Latirus irazu // 279 



taurua // 280 



Leba balbose 21 345 



dalliana ji 347 



Ivcda davilge 21 ^45 



ensinoides 2/ 346 



niilamensis 25 



parva 25 



quercollis 25 



quitanensis 2/ 346 



saffordana 25 



Lepella tubicola. 152 



Lepidopleurus pergranatus ] 68 



Leptochiton 168 



Leptothyra induta 153 



Leuconia .....56 



Leucosyrinx chloris 8 231 



sigsbeei..... 63 



subgrundif era 63 



tenoceras .....63 



verrilli , 62 



Leucozonia cingulifera 85 



ocellata 85 



Levifusus dalei 26 



pagoda 26 



suteri 7 



Litnsea solida 194 



Limopsis monilis 2p 349 



Linsea solida j/ 199,381 



Liostraca 106 



Iviotia bairdi 154 



gemmia 154 



tricarinata 154 



Lissospira proxima 160 



lyitiopa bombix 137 



melaniostoma 137 



Ivittorina augulifera 136 



irrorata 136 



mespilum 136 



tectarius 137 



ziczac 136 



Uvona pica 153 



Longcbaeus 107 



TvOtorium T17 



Lncapina adspersa 165 



cancellata 165 



fasciata 165 



honduraseiisis 165 



sr.ffnsa 165 



Lucina cristata 426 



divaricata 396 



prinioidea 2 19 



quadrisulcata 200 



Limatia. 14S 



M 



Mocoma costaricana 2g 428 



elongata 191 



gatuneiisis 2p 429 



panamensis 19 1 



var. canalis 2g 429 



Macrocallista maculata 189, 



406 



Mactra alata j/ 189, 194, 4,-,5 



elegans 1 91 



estrellana ji 191, 435 



exoleta j/ 189, 191, 434 



nuttalli 437 



sincola jj 436 



Malea camura 186, 191, 200 



elliptica 75 311 



ringens 191 



Mammilla 149 



Mangilia antonia 71 



astrictia ....69 



atrostyla 70 



balteata 69 



biconica 69 



cerina 70 



cerinella 71 



limonitella 70 



melanitica 71 



peripla 71 



plicosa 69 



