18 IOWA ACADFMV OF SCI F..VCF.S•.. 



FoUl■ cx.-unplf's of Uiiio sfliooJcraffii Le;i,()iH' U. 1wvi.ssi)nus 

 Lea, tuid one Helix chnisa Say. Of the Ferii.s the folh)wina" 

 were observed: (hmfinda t-Joyfomana., Botryrhinni rir- 

 ginicuiiij A.dicnit>fni pedafKHi, (U/fifopferis frazil is, A.^ple- 

 nium felix-funniini and ())ntcha sen,sihilifi. 



In Kansas, at Topoka, an ainindance of Physn and Plon- 

 orhis were seen alon<>- the river in a })ond. 



At Emporia in the Neosha, in an hour, the folh)wini>- were 

 taken ; o2 Unio i(iululaf((f< Barnes, 21 U. gibhosus Barnes, 7 

 of which had wliite naere, 11 U. nihigiiiosH,s Lea, o U. 

 schoolcraftii Lea, 4 each of occi(le)i.s Lea, anodontoides Lea. 

 laclirymosus Lea, and coccineus Hild., ^5 parpurains Lam., 2 

 each of subrosfatus Say, tubercidatuft Barnes and JigarDeidimis 

 Lam., 12 Marg. complanafa Barnes. 1 rugosa, Barnes, and 1 

 Ano. bealei^ Lea, in all, 108 specimens. In Allen Creek, near 

 by, were found Unio camptodon Say, suhrostratns Say, l'ni(t 

 parvus Barnes, undulatus Barnes, JSJarg. couqylanafu Uar.. 

 Ano. beaJei Lea, Planorbis trivolvis Say, bicarinafK.s Say. 

 Physa anatina Lea, Ancylus tardus Say, Sph. staiitintum. 

 Con, transversum Say, Succinea ovalis Gould, and the curious 

 little mimic insect Helicopsyche areniferu. 



Unio camptodon (12 specimens) were found to be alive after 

 remaining out of water, in a very dry place, from July 22d 

 till August 29th, 1886. They were kept alive at Muscatine 

 in a tub of water till about the 1st of Januarv, 18.S7. 



