346 REVIEW OF SPECIES OF BELONIDiE. 



ridge. Temporal and superciliary angles sharply defined, the bones 

 above with radiating strige. A very slight notch on temporal ridge, 

 behind eye. Vertex with a blunt median ridge, on each side of which 

 is a depression. Two parallel ridges on each side of occiput, ^o fold 

 of skin across lower posterior edge of preopercle. Cheeks with rather 

 large scales in 7 or 8 series ; opercles with smaller scales. 



Scales comparatively large, loose, not green, 85 before the dorsal fin, 

 about 150 in the lateral line. 



Xo gill rakers. 



Dorsal tin short and rather high, the last rays short, the anterior 

 lobe 1^ in postorbital part of head. Base of fin a little longer than 

 postorbital part of head. Anal longer and higher than dorsal, begin- 

 ning in front of the latter. Caudal subequally lunate, little notched, 

 the lower lobe short, about equal to T)ostorbital part of head. Pectorals 

 1^ in postorbital part of head. Ventrals very short, 2^ in postorbital 

 part of head, placed unusually far back, their insertion midway be- 

 tween base of median caudal rays and axil of pectoral. 



Color, in life, very pale greenish, the lateral stripe well defined, sil- 

 very bluish, about one-third pupil, and not widened below dorsal. 

 Edges of scales above with many dark points. A narrow blue-black 

 line along edge of each jaw. Tips of all the vertical fins of a conspicu- 

 ous pale brick-red. Other fins pale olivaceous. A blue-black vertical 

 blotch on front of opercle above. No axillary or scapular blotch. Lin- 

 ing of opercles dark. 



Color in spirits very pale, with a narrow greenish lateral band and 

 black opercular blotch. This species is very common in the West 

 Indies, as also about the Florida Keys. It is one of the most strongly 

 marked of the group, and since its discovery has been confounded with 

 no other. 



3. Tylosurus subtruncatus. 



Tylosurns scajmlaris Jordan & Gilbert, Bull. U. S. Fish Comm., 1881, 307 ; 

 1882, 109 (Panama): Jordan, Proc. U. S. Nat. Mus., 1885, 370 (Panama). 



Hahitat — Pacific coast of tropical America; Panama. 



Only the original types of this species are known. It is very close 

 to T. siiMruncatus, but, by its coloration at least, it may be easily distin- 

 guished. 



4. Tylosurus subtruncatus. 



Belone suhtrmicata Poey, Meuiorias Cuba, ii, 1861, 295 (Havana); Poey, Sy- 

 nopsis, 1868, 382 ; Poey, Euumeratio, 1875, 120. 



Belone depressa Poey, Memorias Cuba, ii, 296, 1861 (Havana); Poey, Synopais, 

 1868, 382; Poey, Euumeratio, 1875, 120 (not of Gunther). 



Tylo8iiru8 sagitta Jordan & Gilbert, Proc. U. S. Nat. Mus., 1884,25 (Key West); 

 Jordan, 1. c. 1884, 112 (Key West); Jordan, Cat. Fish. N. A., 59, 1885. 



Habitat. — West Indian fauna; Key West and southward to Cuba. 



