100 Melvin L. Warren, Jr. and Ronald R. Cicerello 



Kentucky line, Fulton Co., 12 June 1979; KDOT Q20 (2, -), tributary to 

 Blue Pond (Reelfoot Lake dr.), KY 311 bridge, Fulton Co., 17 June 

 1979; KDOT Q27 (-, -), Rittenhouse Slough (Reelfoot Lake dr.), 1700 m 

 S Bondurant, Fulton Co., 24 August 1978; KDOT Q32 (2, -), unnamed 

 trib. Running Slough (Reelfoot Lake dr.), N Illinois Central Railroad 

 and 170 m SE Ledford, Fulton Co., 22 August 1978. 



This species was previously known from only three Kentucky local- 

 ities (Sisk 1978; Burr 1980). Burr (1980) regarded it as rare and Branson 

 et al. (1981b) listed it as threatened. Umbra limi is apparently firmly 

 established in Terrapin Creek (Brooks M. Burr, pers. comm.) and the 

 Reelfoot Lake drainage of extreme southwestern Fulton County, Ken- 

 tucky, and is sporadically distributed in Clarks River, being most pre- 

 valent in the West Fork. Although the populations in Clarks River 

 represent the only published localities of the species in the Tennessee 

 River drainage, U. limi has also been collected in the Big Sandy River 

 of Tennessee (David A. Etnier, pers. comm.). These populations are 

 near the southern periphery of the range (Gilbert 1980a). The apparent 

 absence of the fish in streams of western Kentucky draining directly into 

 the Mississippi River (e.g.. Bayou du Chien, Obion and Mayfield 

 creeks) is zoogeographically puzzling; however, further intensive sam- 

 pling of wetland habitats in these drainages will probably reveal its 

 presence. The future existence of U. limi in Terrapin Creek (Obion R. 

 dr.) and West Fork Clarks River may be jeopardized by drainage of 

 remaining wetlands as witnessed at two of our collection sites (i.e., KNP 

 M02GRV, KNP Tn04GRV). Likewise, rapid erosion of the Mississippi 

 loess bluffs and expansion of agriculture in the floodplain threaten this 

 and other species inhabiting the Reelfoot Lake drainage in both Tennes- 

 see (Starnes and Etnier 1980) and Kentucky. 



Hybognathus hayi Jordan. Cypress minnow. KNP Tn04GRV (1, 

 74), unnamed wetland (W. Fk. Clarks R. dr.), 0.9 km ENE Clear 

 Springs, Graves Co., 4 May 1982. 



Recent works addressing the distribution of H. hayi in Kentucky 

 have revealed records for direct Mississippi and Ohio river tributaries 

 and floodplain lakes in the extreme western part of the state (Burr et al. 

 1980) and a relictual population in lower Green River (Warren and 

 Cicerello 1982). The discovery of the species in the West Fork Clarks 

 River system represents the first record for the Tennessee River drain- 

 age in Kentucky, although records are available for the drainage in 

 Tennessee (David A. Etnier, pers. comm.) and Alabama (Gilbert 1980b). 

 The specimen was secured from a shallow (<0.6 m) pothole in a recently 

 cleared and drained wetland. Hybognathus hayi is considered threa- 

 tened in Kentucky (Branson et al. 1981b) and in consideration of the 

 elimination and destruction of the preferred wetland habitat by oil 



