(52) 
64. Fundulus menona Jordan & Copeland. (M. V. 263.) 
Rock River; Crystal Lake, McHenry Co. 
Genus ZYGONECTES, Agassiz. 
65. Zygon^ctes notatus (Raf.) Jor. Top Minnow. (M. V. 264, Nelson 42.) 
Generally abundant in sluggish waters and canals, especially 
southward. 111. R. at Pekin; Livingston Co.; Jackson Co. 
66. Zygonectes melanops (Cope) Jordan. Black-eyed Top Minnow. 
(M. V. 264.) 
Numerous specimens of this species were obtained by Professor 
Forbes in the streams and ponds of the southern part of the state. 
They agree exactly with Prof. Cope’s description of his Haplo- 
chilus melanops from the Neuse River in North Carolina. The 
wide distribution of this species is rather unexpected. Cache R. 
and tributaries, Johnson Co. 
67. Zygonectus dispar Agassiz. Striped Minnow. (M. V. 264, Nelson 
42.) 
Generally abundant in lakes, ponds and sluggish streams through 
the state, swimming in schools near the surface, slowly as if it 
were hard work. Specimens obtained by Prof. Forbes in the south- 
ern part of the state, are larger than any hithqrto noticed, being 
more than two inches in length. Large specimens show a dark 
spot under the eye, somewhat as in the preceding species but 
fainter. Pekin; Beardstown; ponds and streams, Union and John- 
son Counties. 
Family UMBRIDiE, (the Mud Minnows.) 
Genus MELANURA, Agassiz. 
68. Melanura limi (Kirtland) Ag. Mud Minnow, Mud Dace, Dog-fish. 
(M. V. 265, Nelson 43.) 
Very abundant in ditches, muddy streams and prairie sloughs; 
found throughout the state, but much commonest northwards ; 
numerous specimens from mud-holes in the bottoms of Johnson 
and Union Counties. Common in ditches near Crystal L., McHen- 
ry County. 
Family ESOCIDAE, (the Pikes.) 
Genus ESOX, Linnaeus. 
69. Esox nobilior Thompson. Muskallunge. (M. V. 266, Nelson 43.) 
In Lake Michigan and, according to Mr. Nelson, said to occur 
in some of the small lakes of the northern part of the state. 
