118 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
hutlerianus (Mississippi), and barratti (South Carolina). Some of the results of a 
recent examination of material may be here given. 
а. Clam Lake, Michigan (eos) : These specimens are a little stouter and darker in color, the scales on 
the cheeks obscure. Scales, 55. 
б. Thayer Lake, Michigan {exile) : Still stouter, more barred, the cheeks naked. 
c. Northern Illinois (eos ) : Stouter, the depth 5 in length ; scales 56, 4 rows above lateral line ; scales 
on cheeks evident ; three spots at base of caudal. 
d. Southern Illinois (ftarmiti). Still stouter, depth 4|; scales 49, 3 rows above lateral line ; cheeks well 
scaled; color nearly plain ; sides with faint bars and a single spot at base of caudal. 
e. Terre Haute, Ind. (palustre). Depth 5; scales 50,3 rows above lateral line; snout rather short; 
cheeks well scaled ; a single faint caudal spot ; markings obscure ; bluish bars in life. 
/. Trinity Eiver, Dallas, Tex. {(jracile). Similar to c in color and form, a little stouter; cheeks well 
scaled ; scales 50, 3 rows above lateral line ; three spots at base of caudal. 
g. Saline Eiver, Benton, Ark. (gracile). Very similar to/. Scales 49 ; three spots at base of caudal. 
h. Mount Vernon, Ind. (jpalustre). Stout, depth 4|; scales 53, one row above lateral line ; one caudal 
spot ; snout bluntish ; no dark lateral stripe. 
Possibly these several varieties may be separated by the following characters : 
a. Cheeks naked ; body faintly barred ... exile. 
aa. Cheeks scaly. 
h. Body stoutish ; no lateral stripe ; depth 4| to 5^ in length. 
c. Snout moderate ; scales on cheek small ; sides with crimson spots .eos. 
ec. Snout bluntish ; no bright red; sides with greenish cross-shades piahisire. 
ccc. Snout rather sharp ; no red. 
d. Body more or less barred and spotted gracile. 
dd. Body nearly plain greenish barratti. 
bb. Body very slender ; dejith 6 in length ; a dark lateral band and more or less of red mark- 
ings fusiforme. 
But the value and constancy of each of the above characters are yet to be proved. 
38. Achirus fasciatus Lac^p^de. S., P. 
This small sole ascends the streams from the sea and is abundant on sandy bot- 
toms in the creeks. 
D.— THE CHOWAN RIVER. 
The Chowan Eiver opens by a broad shallow mouth or estuary into the north side 
of Albemarle Sound. Its principal tributary is the Blackwater, which rises in the 
southeastern part of Virginia and takes its way southward through densely wooded 
swamps of cypress, pine, etc., flowing into the head of the estuary of the Chowan. The 
water of the Blackwater is clear, but, as the name indicates, it is stained to the color 
of coffee by the drainage from the cypress swamps. 
1. BlacTiwater River at Zuni.— This stream was seined at Zuni, a little town on the 
railway west of Suffolk. Collections were made above and below the railroad bridge 
at Zuni. The river at this point is very full of snags, but in the shallow places the 
bottom was sandy. Temperature 73°, September 6. 
The fish fauna is essentially that of the neighboring Dismal Swamp. 
1. Noturus insignis (Eichardson). 
Not rare. 
2. Anguilla anguUla rostrata (Le Sueur). 
Common. 
