12 John R. Shute, Peggy W. Shute, David G. Lindquist 



Ictalurus punctatus (Rafinesque), channel catfish. Although no 

 specimens of the channel catfish were collected during our survey, R. H. 

 Moore (pers. comm.) reported its presence in the lower reaches of the 

 Waccamaw River. 



Noturus gyrinus (Mitchill), tadpole madtom. The tadpole madtom 

 has been taken in a variety of habitats throughout much of the system. 

 Most of our specimens came from the lake and the main channel of the 

 Waccamaw River. This madtom generally avoids swifter sections of the 

 river and was usually associated with thick vegetation or debris. Frey 

 (1951) discussed variation between populations from the North Carolina 

 Bay Lakes (including Lake Waccamaw). Stations: la,c,e,f,g,h,i, 2c, 5, 7, 

 8a, 38, 40, 46. 



Noturus insignis (Richardson), margined madtom. This species was 

 taken exclusively from areas of flowing water and abundant cover in the 

 main channel of the Waccamaw River. It appeared to be the dominant 

 ictalurid species captured in the river. Stations: 7, 8a, d, 19, 28, 29a, b, 

 38. 



Noturus species, broadtail madtom. Two distinct populations of 

 this undescribed madtom exist in the Waccamaw drainage. The form 

 found in the main channel of the Waccamaw River, taken by us from 

 Station 19 and downstream sites, is also found in the adjacent Cape 

 Fear drainage (Jenkins and Palmer 1978). It often occurred with N. 

 insignis. Specimens from Lake Waccamaw clearly differ from the river 

 specimens, but the degree of differentiation has not yet been determined 

 (R. E. Jenkins, pers. comm.). The closest relative appears to be N. lep- 

 tacanthus (Jenkins and Palmer 1978). The Lake Waccamaw form 

 (found throughout the lake and directly below the dam) was often 

 found in cans and bottles as well as under tiles placed as experimental 

 spawning sites for the Waccamaw darter. Broadtail madtoms appear to 

 be relatively common in the lake and may outnumber N. gyrinus. Sta- 

 tions: la,c,d,f,i,j,k,l,m, 7, 19, 28, 29a, 38, 50. 



Amblyopsidae — cavefishes 

 Chologaster cornuta Agassiz, swampfish. The swampfish was never 

 common at any locality. It was encountered in standing or sluggish 

 waters, usually choked with aquatic vegetation or debris. No record of 

 this species from Lake Waccamaw exists and we found none there dur- 

 ing our survey. Stations: 2b, c, 6, 7, 8a,b,c,d, 24, 25, 26. 



Aphredoderidae — pirate perches 



Aphredoderus sayanus (Gilliams), pirate perch. Although Louder 



(1962a) reported the pirate perch from Lake Waccamaw, and E. F. 



Menhinick (pers. comm.) also collected one lake specimen, we collected 



none from the lake. Pirate perch do occur in standing or sluggish and 



