384 Qiiarierly Journal of Conchology. 



H. HiRSUTA, Say. Common along R.R., N. of I\Iuscatine, on 

 Cedar river, 10 m. N.W. of Muscatine and on DesMoines 

 river near DesMoines. 



It appears to thrive in damp grass wliere there is very 

 little timber, as vrell as by old logs in woods. 



H. MOXODON, Rackett. Rare here, common near DesMoines. 



Var. LEAH. Common here with siriaieUa and Jiirsuta. 



H. ALBOLABRis, Say. Rare here; found in deep ravines 8-10 miles 

 S.W. of Muscatine; on Cedar river in damp forests and 

 very abundant in one locality near DesMoines. 



Our albolabn's is a well marked variety. It is white, 

 sometimes with a slight tint of rose; shell thin, rather smaller 

 and strice more delicate than the specimens from Ohio 

 and further east. 

 H. MULTiLiNEATA, Say. This is our characteristic species of the 

 genus. On most islands in the Mississippi river not subject 

 to overflow, this shell abounds. In some places it is very 

 abundant. It inhabits damp forests where there is abund- 

 ance of decaying leaves. Our specimens are very robust, 

 and extremely variable in markings and color. A var, which 

 might be called alba is found here about one in fifty. I 

 found one small region vv'here this var. constituted about 

 one in four. 



Another var. apparently arising from the crowding of 

 the red or brown lines so closely as to blend, giving the 

 shell a dark red or brown color, might be called rubra. 



In 1875, Oct. 31st, I found this species hibernating on 

 Geneva Island 4 miles E. of Muscatine. They v.ere under 

 logs, thick leaves and in the sand with little else over 

 them. In one spot in this city I found two or three speci- 

 mens of this species small and lighter colored, a sort of dwarf. 

 I have some shells that measure as follows: — height 17, 

 greatest diam. 30, least 25 mm. 



