THE NAUTILUS. 21 



the little Unios, and over a pint of the univalves. They were evi- 

 dently making their way up stream, excited to do so by the strong 

 millrace current. Many of them were busily working their shells 

 out of sight in the coarse sand, and if we had been an hour or so 

 later, perhaps none would have been visible. 



Having collected all we desired of these two species, we went be- 

 low the deep hole, and, in water from one to two feet deep, collected 

 all we cared to haul home of the following species : 



Unio alatus Say. A few. 



Unlo anodontoides Lea. Very plentiful and fine, ranging in size 

 from full grown ones seven inches long to the very small young ones 

 an inch in length ; and both varieties, the plain brown colored and 

 the beautifully rayed ones. 



I iiiu occidens Lea. Some very good ones. 



Unio f/ibbosus Barnes. Only a few found, along with its cousin, 

 the anodontoides, and U. rectus Lamarck, a half-dozen. 



U. graci/is Barnes. Quite plentiful. 



U. lackrymosus Leu. Some nicely marked ones. 



I', liijnmentinus Lam. More numerous than any other mussel in 

 this locality. Specimens 5 to 7 inches long, were nicely raved and 

 but little eroded on the beaks. 



Unio multiplicatus Lea. Four or five of the gigantic ones, 7 to &i 

 inches long and a foot in circumference. 



U. piicatus Lesueur. Plentiful, and all sizes. 



U. tuberculatus Barnes. Plentiful, and all sizes, from 7 inches 

 down. 



Margaritana ruyosa Barnes. A few adults found. 



M. eomplanata Bar. Very plentiful and very fine, all sizes, from 

 the beautifully-rayed young specimens, to the full sized adults pecu- 

 liar to this river. One lying before me as I write, is 8} inches long 

 and thirteen inches in circumference. 



This water was too swift and the bed of the river too rocky for the 

 Anodons, and only a few edentulaSny and grandis Say were found. 

 Having loaded our boat with only the finest ones, and as many as 

 we could get in our buggy, we pulled back up to the town, loaded 

 up and departed for home, well satisfied with our day's outing. 



A VISIT TO A VESSEL THAT WAS LOADED WITH SHKLLS. This 

 winter I was much interested in a vessel which came into the port 

 of Boston loaded with nothing but shells. I obtained a beautiful 

 specimen of Spondjlus, pink with white spines, and I can find uoth- 



