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U.S. NATIONAL MUSEUM BULLETIN 287 



chipolana 



collinsoni 



conceptionis 



cordyla 



corpulenta 



curtulosa 



dodona 



extenuata 



fiascona 



gomphoidea 



guppyi 



hypsoma 



indigena 



leonina 



limata 



liogona 



lobula 



lomaensis 



loshka 



navisa 



orixa 



oxia 



peltella 



penderi 



peruviana 



peruviana 



pharcida 



phalacrat 



phenaxia 



platessa 



pompholyx 



pontonia 



posti 



quadrangularis 



rhytida 



sculpta 



smirna 



solida 



solidifacta 



spargana 



taphria 



trochilia 



vaginata 



vanuxemi 



verrilliana 



whitmani 

 *Ledina 

 *Leiochasmea 

 Leiomya 



granulata 



halimera 



velvetina 

 Leiostraca (Liostraca) 



fusus 



hemphillii 

 rectiuscula 

 Leiotrochus 



marionae 

 Lepeta 

 lima 

 *Lepidocardia 

 "^ Lepidopleurus 

 abbreviatus 

 agesiiaus 

 ambustus 

 carinatus 

 farallonis 

 halistreptus 

 incongruus 

 luridus 

 lycurgus 

 mesogonus 

 nicomedes 

 oldroydi 

 opacus 

 percrassus 

 pergranatus 

 *Lepidoradsia 

 Leptinaria 



chathamensis 

 martensi 

 Leptobrysus 

 alta 



monticola 

 veseyianus 

 zeledoni 

 Leptochiton 

 agesiiaus 

 ambustus 

 belknapi 

 internexus 

 lycurgus 

 nicomedes 

 oldroydi 

 pergranatus 

 rugatus 

 Lepton 

 kurtzii 

 parasiticum 

 *Leptoplax 

 *Leptospisula 

 Leptothyra 

 albida 

 fenestrata 

 grippii 

 insculpta 

 juanensis 

 limata 



linnei 

 lurida 



panamensis 



paucicostata 



paucilirata 



philipiana 



tincta 

 *Lepyrium 

 Leucocharis 



dorseyi 

 ^*Leuconella 

 Leuconia 



hemphillii 

 *Leucophysema 



eburneola 



morgana 

 *Leucosyrinx 



amycus 



blanca 



clionella 



erosina 



galapagana 



goodei 



kincaidi 



pacifica 



persimilis 



sigsbei 



subgrundifera 



tenoceras 



verrillii 

 Lima(Limia) 



agassizii 



albicoma 



auaua 



caloosana 



carol inensis 



costulata 



diomedae 



halensis 



hamlini 



hawaiana 



keohea 



lahaina 



nesiotes 



parallela 



patoagonica 



planulata 



similaris 



smirna 



suteri 



tampaensis 



vicksburgiana 

 Limacina 



pacifica 



