1922] natural sciences of philadelphia. 9 



Virginia. 



(1) Mr. Dunn's collection from the head of the James River at 

 Midway Mills in Nelson County, made in 1917 is the most im- 

 portant. 



Ictalurus punctatus (Rafinesque). One 275 mm. 



Campostoma anomalum (Rafinesque). Small one. 



Chrosomus oreas Cope. Abundant. 



Hybognathus nuchalis Agassiz. Eight, largest 88 mm. 



Semotilus bullaris (Rafinesque). Common. Largest 168 mm. 



Semotilus atromaculatus (Mitchill). Two 3'oung. 



Leuciscus vandoisulus Valenciennes. Thirty-three, adult with 

 red sides. Whole upper surface of head with fine though sharp 

 and rather sparse tubercles, each supraoccipital row distinct, 

 though no tubercles on side of head below eyes. 



Abramis crysoleucas (Mitchill). Three of medium size. 



Notropis hudsofiius (Clinton). Nineteen, largest 58 mm. 



Notropis cerasinus (Cope). Very common, largest 115 mm. 



Notropis photogenis amoenus (Abbott). Five, largest 47 mm. 



Rhinichthys atronasus (Mitchill). Seventeen. 



Hybopsis kentuckiensis (Rafinesque). Common, largest 132 mm. 



Catostomus commersonnii (Lacepede). Six small ones. 



Catostomus nigricans Le Sueur. Four; of two larger ones one 

 216 mm. 



Catostomus rhothoecus (Thoburn) Jordan and Evermann. Bull. 

 U. S. Nat. Mus., No. 47, vol. 1,1896. p.181. "Some point in eastern 

 Tennessee or southwestern Virginia, thought to be from French 

 Broad River at Wolf Creek, Tennessee." 



Head 4f to 4f ; depth 4| to 4|; D. in, 9,i; A, in. 6,i; scales 

 43 or 44 in lateral line to caudal base and 3 more on latter; 7 scales 

 above 1. 1., 6 below; predorsal scales 17 or 18; snout 2 to 2f in 

 head; eye 3| to 4f; interorbital 2\ to 2f, moderately convex. 

 Snout protruding beyond mouth. Width of mouth nearly \ of 

 head. Lips with moderate plicae, lower with well marked median 

 division. Dorsal inserted much nearer snout tip than caudal 

 base. Anal depressed, reaches little beyond caudal base, little 

 shorter in young. Caudal forked. Pectoral much longer than 

 head, nearly reaches opposite dorsal origin. Ventral little shorter 

 than head. 



Color in alcohol dusky-olive generally on back. Narrow blackish 

 lateral band from snout below eye to caudal base, its upper boun- 

 dary obscured by dark color of back and lower contrasted with 

 bright white of entire lower surface. Within lateral band six 



