RANGE OF SPECIES 
CIRCUMBOREAL SPECIES 
Area reticulata 
Astarte fabula 
Astarte globosa 
Astarte polaris 
Cuspidaria glacilis 
Cyrtodaria kurriana 
Gemma gemma 
Kellia suborbicularis 
Lasea rubra 
Leda arctica 
Leda buccata 
Leda glacialis 
Leda minuta 
Leda pernula 
Lima suborbiculata 
Lyonsia striata 
Macoma balthica 
Macoma cal carea 
Modiolaria corrugata 
Modiolaria nigra 
Modiolus modiolus 
Mytilus edulis 
Mya arenaria 
Mya truncata 
Nucula tenuis 
Pandora glacialis 
Pecten islandicus 
Saxicava arctica 
Saxicava pholadis 
Serripes gronlandicus 
Thyasira gouldi 
Thyasira ferruginosa 
Thyasira polygona 
Thyasira trisinuata 
Turtonia minuta 
Yoldia intermedia 
Yoldia limatula 
Yoldia thraciaeformis 
Yoldia siliqua 
RANGE TO THE GULF OF CALIFORNIA 
Amiantis callosa 
Asthenothaerus villosior 
Bankia setacea 
Botula diegensis 
Cardium eudoxia 
Cardium procerum 
Cardium substriatum 
Chione fluctifraga 
Cooperella subdiaphana 
Corbula fragilis 
Cryptomya californica 
Cyrilla minuta 
Diplodonta orbella 
Donax gouldi 
Donax punctatostriata 
Ensis californicus 
Glycymeris migueliana 
Anatina undulata 
Area nucleator 
Area solida 
Antigona fordi 
Cardium biangulatum 
Chama buddiana 
Chione succincta 
Glycymeris multicostata 
Leda acuta 
Leda oxia 
Lima dehiscens 
Lucina edentuloides 
Mactra dolabriformis 
Mactra planulata 
Martesia intercalata 
Modiolus opifex 
Nucula exigua 
Nucula linki 
Ostrea lurida 
Ostrea palmula 
Pandora granulata 
Pecten asquisulcatus 
Pecten randolphi 
Phacoides approximate 
RANGE TO PANAMA 
Corbula obesa 
Corbula porcella 
Crassinella branneri 
Crenella divaricata 
Cuspidaria apodema 
Cuspidaria beringensis 
Cuspidaria pectinata 
Phacoides nuttallii 
Phacoides richthofeni 
Psammobia regularis 
Pseudopythina compressa 
Semele pacifica 
Semele rupicola 
Septifer bifurcatus 
Solemya valvulus 
Solen rosaceus 
Sphenia fragilis 
Tellina bodegensis 
Tellina buttoni 
Tellina carpenteri 
Tellina lamellata 
Tindaria mexicana 
Xylophaga mexicana 
Diplodonta subquadrata 
Diplodonta serricata 
Donax californica 
Dosinia ponderosa 
Het'erodonax bimaculata 
Kellia suborbicularis 
Leda hamata 
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