10 



y 



Astarte quadrans, Gould. 



Casco Bay to Eastport. 

 Astarte portlandica, Mighels. 



Casco Bay to Eastport. 

 Astarte elliptica (Brown). 



Casco Bay (Kingsley) ; six miles east of Seguin, 33 

 fath. (Verrill). 

 Astarte subaequilatera, Sowerby. 

 Astarte crebricostata, Gould. 

 Astarte lens, Stimpson MSS., Verrill, 1873. 

 Casco Bay to Eastport. 

 Astarte borealis, Schumacher. 



Astarte semisulcata, Gould, 1870. 



only valves (Blaney); 

 off Treats Island, Eastport 



Frenchman's Bay, rare 

 Machias Bay (Fuller) ; 

 (Fuller). 

 Astarte striata (Leach). 

 Astarte banksi, Leach. 



Frenchman's Bay, 20 fath., rare, only valves (Blaney). 

 Venericardia borealis, Conrad. 



Cardita borealis, Mighels, 1843, Stimpson, 1851. 

 Cyclocardia borealis, Verrill, 1873. 

 Casco Bay to Eastport. 

 '^ Venericardia novanglise (Morse), 1869, 



Cardita (V^enericardia) borealis var, novanglias, Dall, 1903. 

 Casco Bay to Eastport. 

 y Phacoides filosus (Stimpson). 



Lucina filosa, Stimpson, 185 1. 



Old Orchard Beach, single valve (Norton) ; Casco 

 Bay (Kingsley) ; Portland Harbor (Fuller) ; near 

 / Machias (Capt. Walden). 



\j Thyasira gouldi (Philippi). 



Lucina flexuosa, Gould, 1841. 

 Cryptodon gouldi, Gould, 1870. 

 Casco Bay to Eastport. 

 Thyasira plana (Verrill and Bush). 



Casco Bay (Verrill) ; Frenchman's Bay (Blaney). 

 Thyasira trisinuata (d'Orbigney). 

 Cryptodon obesus, Verrill, 1873. 



