Host Fishes and Host - attracting Behavior of Lampsilis akilis and

.&sTRU.T.-Suitable host fishes were identified for two species of freshwater mussels (Unionidae) from the Coosa River drainage, Mobile Basin: Lampsili~ altilis, the fine-lined pocketbook and I’illosn vi/xx, the southern rainbow. Suitable hosts are defined as fishes that produce juvenile mussels from glochidial infestations in the laboratory. Larvae of both L . nltzlis and I! z&x transformed successfully on four species of sunfishes (Centrarchidae): Lepomis cyrrrllrc.s, Aficr-optprus coo~fzc, ,M. punctulnttcs and ,M. vnlmozrlrs. For both mussel species transformation success on I.. ynrllur was highly variable and generally lower than on Micropterus spp. C;ravid female 1.. altzlz~ and C! &PX display highly modified mantle margin lures in the early spring. In addition to displaying mantle lures, I.. altilis produce superrongllitinates, similar to those recently described for three other species of Lnmpsilic in the southeastern U.S.