168 



Prosob ranchiata (continued) 

 Architedonica nobilis 

 Calyptraea conica 

 Calyptraea mamillaris 

 Calyptraea siibreflexa 

 Crepidula arenata 

 Crepidula excavata 

 Crepidula incurva 

 Crepidula perfnrans 

 Crucibulum scuttelalum 

 Crucibulum serratum 

 Crucibulum spiriosum 

 Polinices reclusiamis 

 Sirornbus gracilior 

 Hexaplex erythrostomus 

 Eupleura muriciformis 

 Anachis adelinae 

 Anachis varia 

 Strombina solidula 

 Cantharus pallidus 

 Phos articulatus 

 Nassarius pagodus 

 Nassarius versicolor 

 Fusinus ambustus 

 Oliva incrassata 

 Oliva spicata pol pasta 

 Olivella dama 

 Olivella fletcherae 

 Olivella gracilis 

 Mitra hindsii 

 Lyria cummingii 

 Cancellaria balboae 

 Cancellaria cassidiformis 

 Cancellaria decussata 

 Cancellaria obesa 

 Claims roseolus 

 Clavus pembcrtonii 

 Clavus unimaculatus 

 Clathrodrillia pilsbryi 

 Crassispira nephele 

 Crassispira labogcnsis 

 Crassispira xanti 

 Hormospira maculosa 

 Pleuroliria picta 

 Conus perplexus 

 Conus scalaris 

 Terebra armillata 

 Terebra malonei 

 Terebra spccillata 

 Terebra tuberculosum 

 Terebra variegata 

 Pyramidella adamsi 



Lamellibranchiata 

 Nuculana acrita 

 Nuculana costellata 

 Nuculana elenensis 

 Nuculana fastigata 

 Nuculana impar 

 Adrana exoptata 

 Adrana penascoensis 

 Adrana tonosiana 

 Anadara obesa 

 Lioberus salvadoricus 

 Pecten sericeus 

 Chlamys circularis 

 Crassatella gibbosa 

 Trachycardium panamense 

 Laevicardium datum 

 Laevicardium elenense 

 Pilar concinnus 

 Pilar newcombianus 

 Megapitaria aurantia 

 Megapitaria squalida 

 Chione compta 

 Chione mariae 

 Cooperclla subdiaphana 

 Tellina amianta 

 Tellina arenica 

 Tellina iris 

 Tellina tabogensis 

 Macoma siliqua 

 Donax gracilis 

 Ensis californicus 

 Corbula luteola 

 Corbula nasuta 

 Corbula ovulata 

 Pandora claviculata 

 Lyonsia gouldii 



Crustacea 

 Balanus trigonus 

 Balanus concavus mexicanus 

 Munida tendla 

 Euceramus transverslineatus 

 Minyocerus kirki 

 Porcellana cancrisoc talis 

 Dardanus sinistripes 

 Paguristes digueti 

 Paguristes praedalor 

 Pagurus bcnedidi 

 Pagurus gladius 

 Petrochirus californiensis 

 Pylopagurus varians 

 Parapylochdes glasselli 



Scaphopoda 

 Dentalium oerstedii 

 Dentalium inversum 

 Cadulus perpusillus 



Echinoidea 

 Arbacia incisa 

 Encope micropora 

 Clypeastcr, sp. 



