New Records Kentucky Fishes 133 



McGrain (1966) placed the downstream origin of the falls near the pres- 

 ent location of Burnside, Kentucky, which is well downstream of the 

 present mouths of both the Laurel and Rockcastle rivers. The presence 

 of P. cumberlandensis in these river systems suggests the relatively rapid 

 regression of Cumberland Falls as the most likely explanation for the 

 present distribution. Further faunal evidence is implied by the Cumber- 

 land River distribution of Etheostoma kennicotti as presented by Page 

 and Smith (1976). Unfortunately, the dispersal and distribution of P. 

 cumberlandensis is obscured and fragmented by man's activities in the 

 area (i.e., mining, impoundments, etc.). In addition, there is apparently 

 no geological record of the regression of Cumberland Falls (McGrain 

 1966). The blackside dace is listed as threatened by the Kentucky 

 Academy of Science (Branson et al. 1981). 



Percopsis omiscomaycus (Walbaum). Trout-perch. KNP BO 1 LAW 

 (3), Little Blaine Cr. (Big Sandy R. dr.), 3.5 km NW of the jet KY 32 and 

 Little Blaine Cr. Rd., Lawrence Co., 3 October 1978; UT 79.4 (4), KNP 

 SOI CAR (2), Big Sinking Cr. (Little Sandy R. dr.), 1.7 km above mouth, 

 Carter Co., 13 September 1978. 



Although primarily a northern species, the trout-perch is widely but 

 discontinuously distributed in Kentucky, with most records from the 

 extreme northeastern section of the state (Clay 1975; Burr 1980). The Little 

 Blaine Creek collections were believed to represent the most upstream 

 locality in the Big Sandy River; however, material recently examined from 

 Right Fork Beaver Creek (Levisa Fork Big Sandy R. dr.) indicates a much 

 wider distribution in the Big Sandy than was previously known. The 

 specimens are housed at the Kentucky Department of Transportation, 

 Frankfort, Kentucky (Steve P. Rice, pers. comm.). Additional records in 

 the middle and upper reaches of the Big Sandy River may be expected. 

 Percopsis omiscomaycus is listed as of special concern in Kentucky by the 

 Kentucky Academy of Science (Branson et al. 1981). 



Ammocrypta pellucida (Putnam). Eastern sand darter. KNP uncat. 

 (1), N. Fk. Red R. (Kentucky R. dr.), below KY 715 bridge at Menifee- 

 Wolfe county line, 17 June 1978; KFW 1745 (4), Greasy Cr. (Middle Fk. 

 Ky. R. dr.), no locality, Leslie Co., 15 August 1962; KFW 1 160 (1), Middle 

 Fk. (Kentucky R. dr.), no locality, Leslie Co., 15 June 1960. 



Ammocrypta pellucida is known from few localities in the Kentucky 

 River drainage (Williams 1975; Hocutt 1980). The species was previously 

 reported from localities in the lower reaches of the Red River (Branson and 

 Batch 1974) and in the North and South Forks of the Kentucky River 

 (Williams 1975). The above collection extends the known range in the Red 

 River approximately 33 km upstream and indicates a broader distribution 

 in this system than was previously reported. The specimens from Middle 

 Fork of the Kentucky River constitute a new record for this drainage and 

 indicate that A. pellucida occurred throughout the upper Kentucky River. 

 The Red River specimen was taken at the margin of a deep (1.0 m), gently 



