89. Hyborhynchus superciliosus Cope. (M. V. 289.) 
Very abundant in the bottoms of Johnson and Union counties, 
and in the southern part of the state generally. It is very close to 
the preceding, and may not be really different. Cache R. and 
Clear Cr., Union Co.; Rock R., Ogle Co. 
Genus HYBOGNATHUS, Agassiz. 
90. Hybognathus argyritis Grd. Silvery Minnow. (M. V. 289; Nel- 
son 45.) 
Abundant in the southern third of the state. Bottoms of John- 
son and Union counties ; Wabash River; Ohio River; Peoria. 
91. Hybognathus nuchalis Agassiz. Blunt-jawed Minnow. (M. Y. 
289 ; Nelson 45.) 
Wabash R. “A few specimens in the state collection from cen- 
tral Illinois.” (Nelson.) The distinctions between this species and 
the preceding do not appear to be very clear. Normal, Pekin. 
Genus ALBURNOPS, Girard. 
(. Hybopsis Cope, not of Ag.) 
92. Alburnops storerianus (Kirt.) Jor. Storer’s Minnow. (M. Y. 290 ; 
Nelson 46.) 
Rather frequent in Lake Michigan and iji the small lakes of 
northern Indiana. Peoria, Chicago. 
98. Alburnops hudsonius (Clint) Jor. Spawn Eater. (M. V. 290; Nel- 
son 46.) L. Mich., 111. R. 
94. * Alburnops tuditanus Cope. (M. Y. 290 ; Nelson 46.) 
Found by Prof. Cope in various tributaries of Lake Michigan 
and of the Wabash in Indiana. The species is unknown to me. 
[95. Alburnops nubilus Forbes, n. s. 
Twenty specimens from Rock R., in Ogle Co., approaching H. spectrun - 
cuius , are not referable to any species or description of the group Alburnops , 
(M. Y., Hybopsis Jordan & Copeland’s Check-list; to which they undoubt- 
edly belong. 
The mouth is inferior and horizontal ; the teeth are in one row, 4-4, but 
slightly hooked, with large masticatory surface, and the dorsal is over the 
ventrals. 
The length is 2 i inches to the caudal. Depth 3f to 4 in length, head 
4}, eye 3 in head, nose 3§, interorbital space 3 to 3L The depth of the 
head is contained 6} to 7 times in the head and body. 
D 1-8, A 1-9. Scales 5-37-3, 14 before D. The lateral line is de- 
flexed on the anterior fourth. The deep body, narrow head and large eye, 
