57 



the east side of tiie Chandeleur Islands ; the empty shells of this 

 form are found on beaches all along the coast. 



MargitipJiora radiata; beach east of jetties at Cameron. 



Rangia cuneata; from the Chandeleur Islands (Cowles) 

 1904. 



Tcllina allernata; found on sand flats above low water at; 

 the Chandeleur Islands, empty shells found on the beach at 

 Cameron. 



Mactra hrasiliana; empty shells of this form found on the 

 beach at Cameron, the Chandeleur Islands, and at South West 

 Pass. 



Mactra soUidlssima vor. similis; empty shells found coni- 

 monly along the coast. 



Gnathodon cuncafus; this form, commonly called "clam 

 in this region, occurs in abundance in the waters near the coast. 

 Immense banks of the dead shells of this mollusc are found 

 along the coast, in some instances at points now far removed 

 from any body of water. 



Venus mercenaria; the "little neck clam" or "quahog.'j. 

 occurs in abundance on the sandy shoals at the Chanddeitv 

 Islands, the empty shells are frequently found at Cameron an-l 

 at other points along the coast. 



Venus camp ecliien sis ; foiuid rarely at Cameron and at the 

 Chandeleur Islands. 



Venus varicosa; the empty shells of this mollusc alway.^ 

 with a Gorgonia attached are frequently found on the beach at 

 Cameron and at the Chandeleur Islands. 



Dosinia discus; found on sand flats at the Chandeleur 

 Islands. 



CaUisia gigantea; a very few specimens on the beach at the 

 Chandeleur Islands. 



Petricola plioladifonnis; empty shells common on the beach 

 at Cameron, Southwest Pass, and the Chandeleur Islands. 



Cardium magnum; the empty shells of this large "cockle" 

 are found along^ the coast. Live specimens were taken at 

 the Chandeleur Islands in abundance. 



Cardium rohustum., taken at the Chandeleur Islands by Dr. 

 Cowles in 1904. 



