64 BULLETIN 37/ UNITED STATES NATIONAL MUSEUM. 



Table II. B. — List of Pelecypoda — Coutinued. 



Name and authority for species. 



Genus LABIOSA Schmidt. 



L. lineata Say .^... 



L. canal icnlata Say - 



Order AIVOMALiODESM.^CEA. 



Suborder ANATL\ACEA. 



Family ANATINIDJ3. 



Genus THRACIA Blainv. 



T. Conradi Couthouy 



T. StimpsoDi Dall , 



T. corbuloidea Blaiuville 



T. distorta Montagu 



T. phaseolina Lamarck 



Genus ASTHENOTH^RUS Cpr 



A. Hemphillii Dall , - . 



Subgenus Bushia Dall. 



B. elegans Dall 



Genus PERIPLOMA Schum. 



P. insequival vis Schumaclaer 



P. angulifera Philippi 



P. tenera Jeifreys 



P. fragilis Totteu 



P. papyracea [Say] Conrad 



Subgenus Cochlodesma Coutliony. 



C. Leanum Conrad 



Family LYONSIID.E. 



Genus LYONSIA Turton. 



L. hyalina Conrad 



L. floridana Conrad 



L. Beana Orbigny , 



L. formosa Jeffreys 



L. ? arata Verrill 



Genus LYONSIELLA M. Sars. 



i. insculpta Jeffreys 



L. alyijfi^icola Sars 



PL 



69 



39 



59 



59 



59 



Figs. 



11 



,5,6? 

 33-45 



4 

 133 



Alt. 



or 



Lon. 



Range 



in 

 doptli. 



65.0 



6.25 



12.5 



32.5 



10.0 



7,8 



28 





NoTtlicru 

 extreme range. 



New Jer.sey.. 

 New Jersey.. 



Labrador . 



Hatteras 



Gulf of Mex 

 Britain 



Gulf of Mex. 



Florida Str.. 



Texas? 



Gulf of Mex. 



Hatteras 



Labrador 



Gulf of Mex. 



Nova Scotia. 



Nova Scotia. 

 Gulf of Mex. 



Hatteras 



N.Atlantic .. 



Ehode Island 



Norway 

 Norway 



