20 FIELD AND FOREST. 



was suspended and resumed again, another ant meanwhile coming to 

 the rescue ; but, finally, ant number one, by main strength of legs and 

 jaws, pulled the insect out of the pit, and proceeded on its way re- 

 joicing. 



Another ant was given a piece of cracker half as large as a nickel 

 cent, and after walking around it and over it once or twice, touching 

 it with its feelers, or antennae, the jaws were fastened into a projecting 

 corner, the legs began to move like the paddles of a steamboat, and 

 soon the immense mass moved off, and was speedily housed. 



Meanwhile our little friend with the butterfly had got into trouble 

 again, and just at home too. The dead insect had failed into another 

 crevice so deep that only the tips of its wings projected above. Then 

 nearly quarter of an hour was taken up in vain endeavors to lift the 

 bulky thing out of the hole again, but without success, though half a 

 dozen other ants had come out to render assistance, so we moved the 

 insect around the corner of the brick, and in a very short space of time 

 it was carried along the deep crevice, and finally disappeared in the 

 wall. 



Two other butterflies, and several pieces of cracker of various sizes 

 were given them, and in an hour or two they were all drawn or carried 

 into the hole out of sight and then they seemed to rest from their la- 

 bors. 



C. R. D. 



Description of a New Species of Anodonta. 



Anodonta dejecta, sp. not'. Shell obovate, subcylindrical, inequi- 

 lateral, slightly disposed to be alate posteriorly ; emarginate on the 

 base, posteriorly dilated and somewhat broadly biangular ; substance 

 of the shell of moderate thickness and disposed to be opaque ; beaks 

 scarcely elevated above the dorsal margin, having a few minute irregu- 

 lar undulations at their tips ; ligament somewhat long ; epidermis yel- 

 lowish brown, or olivaceous, polished, and without rays ; lines of 

 growth coarse and somewhat distinct ; anterior cicatrices distinct ; pos- 

 terior cicatrices confluent ; dorsal cicatrices in the cavity of the beak 

 a little removed from the dorsal margin, which is slightly arcuate; 

 nacre white or faintly tinted salmon color and iridescent. 



