NATURAL SCIENCES OP PHILADELPHIA. 24 7 



A. intermedia, Sowerby, Thes. Conch, ii. 779, 1. 167, f. 11. 1855. 



Northern Europe. 

 A. longirostra, D'Orb. Yoy. Amer. Merid. 576, t. S3, f. 21-24. 

 1846. 



Malouin Isles. 

 A. lunulata, Conrad, Foss. Tert. Form. 44, t. 21, f. 8. 

 A. bilunulata, Conrad, Adams, Genera, ii. 



Southern Coast United States. 

 A. lutea, Perkins, Proc. Bost. Soc. Nat. Hist. xiii. 151. 1869. 



Neiu Haven, Conn. 

 A. oblonga, Sowerby, Thes. Conch, ii. 781, t. 167, f. 19. 1855. 



Hub.? 

 A. RoLLANDi, Bernardi, Jour, de Conchy. C. vii. 386, t. 13, f. 1. 

 1S58. 



Petrapolowski. 



A. pulchella, Jonas, Philippi, Abbild. t. 1, f. 12. 



Spitzenbergen. 

 A. sulcata, Da Costa, Brit. Conch. 192. 1778. 



Sowerby, Thes. Conch, ii. 778, t. 167, f. 1-3. 1855. 

 Crassina Danmoniensis, Lamarck, Anim. s. Yert. Ed. 



Deshayes, vi. 360. 

 Crassina Scotica, Turton, Conch. Dith. Brit. 130, t. 11. 



f. 3, 4. 1822. 

 Venus crassatella, Blainville. 

 Venus Petagnse, Costa, Cat. Syst. 34. 1829. 

 Astarte undata, Gould, Invert. Mass. 80. 1841. 



Sowerby, Thes. Conch, ii. 779, t. 167, f. 12. 1855. 

 Astarte latisulca, Hanley. 

 Astarte Mortoni, Adams. 



Astarte fusca, Poli, Test. Utr. Sicil. 49, t. 15, f. 32, 33. 

 1791. 



Sowerby, Thes. Conch, ii. 783, t. 167, f. 24. 1855. 

 Astarte incrassata, Philippi, Enum. Moll. Sicil. i. 38. 1836. 

 Astarte subsequilatera, Sowerby, Thes. Conch, ii. 781, t. 

 167, f. 13. 1855. 



Northern Europe to Mediterranean ; 



New England, northwards. 



