ZOOLOGICAL TAXA OF WILLIAM HEALEY DALL 419 



baldwini 

 Solemya 

 agassizii 

 bartschii 

 johnsoni 

 panamensis 

 Solen 



abruptus 

 amphistemma 

 conradi 

 mexicanus 

 *Solenosteira 

 elegans 

 inornata 

 mengeana 

 vaughani 

 *Spaniorinus 



cossmanni 

 =^Spartocentrum 

 =^Spergo 



daphnelloides 

 glandiniformis 

 Sphaerium 



aquilonarium 

 gemma 

 meeki 

 mexicanum 

 tenellum 

 Sphenia 



antillensis 

 attenuata 

 globula 

 pholadidea 

 subequalis 

 trunculus 

 Wallace! 

 Spheniopsis 



americana 

 *Spinula 

 calcar 

 calcarella 

 Spiraxis 



tampae 

 Spisula 

 alaskana 

 arnoldi 



callistaeformis 

 camaronis 

 curtidens 

 densa 

 dodona 

 duplinensis 

 longa 

 magnoliana 



marylandica 

 precursor 



Spondervilia 

 ambla 



Spondylus 

 chipolanus 

 filiaris 

 gloriosus 

 hawaiensis 

 kauaiensis 

 mimus 

 parvispinus 

 serratissimus 

 sparsispinosus 



*Spongiochiton 

 productus 

 Sportella 



californica 

 lioconcha 

 lubrica 

 obolus 

 pelex 



petropolitana 

 pilsbryi 

 recessa 

 stearnsii 

 unicarinata 

 whitfieldi 

 yorkensis 

 *Staffola 

 derbyi 

 Stagnicola 



anticostiana 

 perpolita 

 Standella 



stimpsoni 

 *Stectoplax 



porrecta 

 *Steiraxis 



aulaca 

 *Stellaxis 

 ^Stemmodiscus 

 '■Stenolena 



hawaiensis 

 'Stenoplax 

 aethonus 

 bermudensis 

 ''■Stenoradsia 

 "^Stereochiton 

 felipponei 

 Sthenorytis 

 belaurita 

 insigne 

 mazyckii 



stearnsii 

 toroense 

 turbinum 

 Stigmaulax 

 cubana 

 Stilifer 



bathymetrae 

 castaneus 

 minima 

 minuta 

 perdepressus 

 verrillii 

 Stilus 

 vitreus 

 *Stomega 

 ■Strephonella 

 Strepsidura 



oregonensis 

 ■Streptochiton 

 Streptostyla 

 bartschii 

 jilitlana 

 nebulosa 

 paimeri 

 potosiana 

 toyuca 

 Strigatella 

 americana 

 catalinae 

 diegensis 

 mexicana 

 Strioterebrum 

 balaenorum 

 bridgesi 

 lucana 

 panamensis 

 pedroana 

 philippianum 

 Strioturbonilla 

 aresta 

 asser 

 attrita 

 buttoni 

 calvini 

 carpenteri 

 galapagensis 

 galianoi 

 haycocki 

 humerosa 

 imperialis 

 mexicana 

 nicholsi 

 pazana 

 peilei 



