No. 4. 

 REPORT ON FISHES COLLECTED ON THE SURVEY. 



BY CHARLES GIKAED.M.D. 



1. POMOXIS NITIDUS, Grd. 

 Gen. Kep. 6. Plate II, Figs. 5—8. 



Spec. Char. — Posterior extremity of maxillary corresponding to a line intersecting the pupil. Insertion of ventrals situated 

 opposite the inferior edge of the hase of the pectorals. Anterior spiny ray of anal fin under the fourth dorsal one. Posterior 

 margin of caudal fin sub-concave. Upper regions reddish, spotted and fasciated with brown; inferior regions silver and golden. 



161. Houston river, Kentucky. E. L. Berthaud. 



2. AMBLOPLITES INTEERUPTUS, Grd.— The Percli of San Francisco. 

 Gen. Eep. 10. Plate II, Figs. 1—4. 



Spec. Char. — Posterior extremity of maxillary reaching a vertical line drawn back of the pupil. Posterior margin of caudal 

 fin sub-emarginated. Origin of aual fin opposite the eleventh ray of the dorsal. Interrupted dark bands on the sides. Two 

 streaks diverging from the eye— one running towards the opercular spot, the other obliquely downwards. 



278. San Joaquin river, California. Dr. A. L. Heermann. 



3. PARALABEAX NEBULIFEE, Grd. 



Gen, Eep. 33. Plate XII, Figs. 1—4. 



Spec. Char. — Snout sub-conieal; extremity of maxillary reaching the anterior edge of the pupil. Eyes moderate. Base 

 of pectorals a little in advance of that of the ventrals. Irregular dark blotches distributed over the dorsal region. 



282. Monterey, California. Lieutenant W. P. Trowbridge. 



4. PAEALABEAX CLATHEATUS, Grd. 

 Gen. Eep. 34. Plate XII, Figs. 5—8. 



Spec. Char. — Snout rather pointed; extremity of maxillary intersecting the middle of the pupil. Eyes rather large. Base 

 of pectorals even with the base of ventrals. Blotches of dorsal region assuming a fenestrated disposition. 



283. San Diego, California. Lieutenant W. P. Trowbridge. 



5. CHIEOPSIS CONSTELLATUS, Grd. 

 Gen. Eep. 42. Plate XIX. 



Spec. Char. — Dorsal fins contiguous. Caudal fin posteriorly sub-concave. Anal exteriorly rounded, or convex. Scales on 

 th middle of the flanks conspicuously larger than elsewhere. Greenish-brown with groups nf black dots on the anterior part 

 body and sides of head. Pectorals densely dotted with black. 



264. San Francisco, California. Dr. A. L, Heermann. 



