FISHES. 27 



30. SALAE IRIDEA, Grd. 

 Gen. Rep. 321.— Plate LXXIII, Fig. 5 ; and Plate LXXIV. 



Spto. Char, — Body sub-fusiform in profile, othinwise compressed ; head well developed, coiistitutiug a little less than the 

 fourth of the total length. Jaws sub-equal ; posterior extremity of maxillary extending to a vertical line drawn somewhat 

 beyond the orbit. Anterior margin of dorsal fin equidistant between the extremity of the snout and the insertion of the caudal. 

 Reddish brown above, with numerous and small black spots; yellowish white beneath. 



596. Humboldt bay, California. Lt. W. P. Trowbridge, 



31. MELETTA COERULEA, Grd. 



Gen. Rep. 330. Plate LXXV, Figs. 5—7. 



Spec. Char. — Body slender, elongated, sub-fueiform in profile. Head constituting more than the fifth of the total length 

 Posterior extremity of maxillar bone extending to a vertical line drawn through the middle of the orbit. Eye large and sub- 

 circular; its diameter entering four times and a half in the length of the side of the head. Anterior margin of dorsal fin nearer 

 the extremity of the snout than the insertion of the caudal. Base of anal fin entering about ten times in the total length. Inser- 

 tion of ventrale opposite the posterior third of the base of the dorsal fin. Bluish black above; yellowish or whitish beneath, 

 with metallic reflects. Fins unicolor. 



958. Humboldt bay, California. Lt. W. P. Trowbridge. 



32. HYODON TERGISUS, L e s u .—Moon-eye. 



Gen. Rep. 330. Plate LXXV, Figs. 1—4. 



Spec. Char — Head contained five times and a half in the total length; snout rounded, sub-conical. Posterior extremity of 

 maxillar bone extending to a vertical line drawn posteriorly to the pupil. Eye very large, sub-circular ; its diameter entering 

 about four times in the length of the side of the head. Anterior margin of dorsal fin somewhat nearer the tip of the caudal 

 than the occiput. Base of anal fin entering about four times in the total length. Insertion of ventrals nearer the extremity of 

 the snout than the terminus of the anal. 



962. at. Louisj Missouri. Dr. Geo. Engelmann. 



