80 



INDEX. 



Plsum ventrlcosum, Adams, 72 



virginicum, Desh. 62 



zonatum, Adams, 68 

 Polymesoda, 11 



Spherium, iv, 2, 4, 32, 33, 35, 37, 39, 



53, 56, 59, 60, 64 

 Sphserium africanum, iv 



argentiimin, D Orb. 52 

 aureum, Prime, 35 

 bahiense, Spix, iv, v, 53, 



54 



barbadense, Prime, 53, 54 

 contractum, Prime, 48, 49 

 corneum, iv 

 cubense, Prime, 58 

 dentatum, Hold. 40 

 dubium, Desh. 62 

 elevatum, Hold. 44, 45 

 emarginaturn, Prime, 43 

 fabalis, Prime, 40 

 ferrugineum, Krauss, 71 

 flavuin, Prime, 42, 43 

 formosum, M. fr II . 59 

 jayauum, Prime, 46 

 lacustre, .Fer. iv, 51, 52 

 lenticula, Gould, 51, 52 

 maculatum, Morelet, 53, 



55 

 meridionale, Prime, 53, 



55, 57 

 modioliforme, J.ton, 54, 



55 



nitidum, Desh. 63 

 nobile, Gould, 41 

 occidentale. Prime, 41 

 ovale, Stimpson. 41 

 partumeium, ?/, iv, 41, 



45, 46, 51 

 parvulum, Prime, 

 patella Gould, 40, 42, 43 

 planum, M. $- H. 58 

 portoricense, Prime, 56 



Sphaerium pulchellum, D Orb. 71 



recticardinale, jW. $#. 58 

 rhomboideum, Say, iv, 34, 



39 



rosaceum, Prime, 50, 51 

 securis, Prime, 49, 50 

 solidulum, Prime, 36, 37, 



38 



solidum, iv 



sphsericum, Anthony, 50 

 spokarri, Baird, 44 

 stamineuin, Conr. 38, 42 

 striatinum,Law. 37, 38,42 

 subellipticum, M. fr H. 59 

 subtransversum,Prme,52 

 sulcatuna, Lam. iv, 33, 34 



42, 57 



tenue, Prime, 47 

 triangulare, Say, 36 

 transversum, /Saw, 47, 48. 



49 

 truncatum, Linsley, 46, 



51, 52 



tumidum, Baird, 43, 44 

 veatleyii, C. B. Adams, 



56, 57 

 vermontanum, Prime, 42, 



43 

 viridante, Morelet, 57, 58, 



Tellina, 2, 32, 59, 60 

 Tellina fluminalis, 2 



Jluminea, 2 



fluviatilis, 2 



limosa, Maton, 5 



pusilla, Dillw. 62 



virginica, Gml. 62 



Velorita, 1, 10, 11, 12 

 Velorita cyprinoides, 11 

 Veneriadsc, 1 

 Venulites, 2 

 Fenus, 2, 9, 10, 11 



