624 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



its diameter about half lengtli of snout. Gill-opeuing small, scarcely 

 wider than orbit. Tube of anterior nostril rather short, less than half 

 eye. Posterior nostril above front of eye. Occipital region little 

 prominent. 



Dorsal tin rather high, commencing nearly midway between gill- 

 opening and eye, its greatest height rather more than half greatest 

 depth of body. 



Color, in spirits, light chestnut brown, finely freckled, but without 

 distinct spots of any kind. Dorsal with a conspicuous edge of blackish, 

 the margin narrowly white. Anal edged with white. No black about 

 eye or gill-opening 



22. Murasna'' melanotis (Kanp.) Gtbr. 



A specimen, 22 inches long, has the teeth everywhere uniserial, other- 

 wise agreeing with descriptions of melanotis. Bodj" and fins dark brown, 

 marbled with blackish, everywhere with small yellowish spots much 

 more numerous anteriorly, those on the tail narrowly oblong. Angle of 

 mouth, and a large roundish blotch around gilt-slit black, this blotch 

 nearly four times as wide as orbit. 



Eye over middle of gape, which is 2f in head. Head 2^- in trunk. 

 Tail slightly longer than rest of body. 



23. Tylcsunis pacificus (Steiiul.) J. & G. 



24. Hemirharaphus ? brasiliensis (Liun.) C. & V. 



Two adults, about 15 inches long, agree with specimens collected by 

 Mr. Gilbert at Panama, and differ from Atlantic representatives of the 

 species in their longer pectoral fins, and in the more anterior inser- 

 tion of the ventrals. It is probable that the Pacific form is a distinct 

 species (^r subspecies, but our material from the Atlantic is too limited 

 to warrant the separation of the former. 



The specimens before us have the pectoral nearly six-sevenths length 

 of head (three-fourths in Atlantic specimens) and greater than depth 

 of body; the distance from root of ventrals to base of caudal is slightly 

 less than one-third distance to front of snout, and measured from base 

 of ventrals forwards reaches a point nearer base than tij) of pectorals. 

 D. 14; A. 11 or 12. Scales 58. Head 4f in length; lower jaw 5 in total 

 length (including caudal). Eye 4i in head, equaling interorbital space. 

 The first 3 to G rays of dorsal and anal with series of scales, these fins 

 otherwise naked. 



25. Hemirhamphus unifasciatus Raiiz. 



26. Mtigil brasiliensis Agassi z. 



27. Mugil incilis Hiiucock. 



A single adult example with the scales noticeably smaller than in 

 M. hrasilienfiis, and the vertical fins lower. Lateral line 43; 14 scales 

 in a cross series. Longest dorsal ray less than half length of head. 



28. Querimana harengus (Gihitliei-) J. & G. 



29. Sphyraena ensis Jor. & Gilb. 



