642 



NEW YOKE. STATE MU8ECM 



The following species of shells are represented in the collection 

 of the State Museum by specimens from the neighborhood of 

 Albany and Troy : 



Unio pressus, Lea. (See note 2.) 

 Unio Tappanianus, Lea. (See note 

 3.) 



Unio radiatus, Lamarck. (See note 

 5.) 



Unio nasutus, Say. (See note 6.) 

 Unio complanatus, Solander. (See 



note 7.) 

 Unio ochraceus, Say . • 

 Unio cariosus, Say. 

 Margaritana marginata, Say. 

 Margaritana rugosa, Barnes 

 Margaritana undulata, Say . (See 



note 8.) 



Anodonta undulata, Say. (See 

 note 9.) 



Anodonta Ferussaciana, Lea. (See 



note 10.) 

 Anodonta Lewisii, Lea. 

 Anodonta implicata, Say. 

 Anodonta fluviatilis, DiUwy*. 

 Sphairium simile, Say. 

 Sphaerium. striatinum, Lam. 

 fcphaarium rhomboideum, Say. 

 Sphcerium transversum, Say. 

 Sphterium securis, Prime. 

 Pisidium Virginicum, Bourg. 

 Pisidium compressum, Prime. 

 Goniobasis Virginica, Gmelin. 

 Goniobasis livescens, Menke. 

 Bythinia tentaculata, Linn. (See 



note 11.) 

 Bythinella obtusa, Lea. 

 Gillia altilis, Lea. 

 Somatogyrus subglobosus, Say. 

 Amnicola porata, Say. 

 Amnicola pallida, Anthony. 

 Pomatiopsis lapidaria, Say. 

 Lyogyrus lustricus, Say. 



Valvata tricarinata, Say. 

 Vivipara contectoides, W. G. B. 



(See note 12.) 

 Melantho decisa, Say. 

 Melantho integra, Say. 

 Melantho rufa, Haldeman. 

 Lioplax subcarinata, Say. (See 



note 13.) 

 Carychium exiguum, Mull. 

 Limnaea desidiosa, Say. 

 Limntea catascopium, Say. 

 Limncea umbilicata. Adam*. 



= caperata, Say, var. 

 Limn sea humilis, Say. 

 Physa ancillaria, Say. 

 Phvsa heterostropha, Say. 

 Bulinus hypnorum, Linn. 

 Planorbis trivolvis, Say. 

 Planorbis bicarinatus, Say. 

 Planorbis exactus, Say. 

 Planorbis deflectus, Say. 

 Planorbis hirsutus, Gould. 

 Planorbis parvus, Say. 

 Segmentina armigera, Say. 

 Ancylus fuscus, Adams. 

 Ancylus parallelus, Haldeman. 

 Ancylus tardus, Say. 

 Limax maximus, Linnwus. (See 



note 15.) 



Limax flavus, Linnaeus. (See 



note 15.) 

 Limax campestris, Binney. 

 Limax agrestis, Linnaeus. (See 



note 15.) 

 Zonites fuliginosus, Griffith. 

 Zonites intertextus, Binney. 

 Zonites arboreus, Say. 

 Zonites viridulue, Menke. 

 Zonites internus, Say. 



