1. BELONE. 245 



at a considerable distance from the root of the caudal. Caudal fin 

 obliquely truncate. Scales very thin and small, and deciduous. 

 Coasts of America. 



a. Northern specimens have generally the superciliary region 

 faintly striated, and D. 15-16, A. 17-19 : B. truncata. 



a. Adult. North America. Purchased of Mr. Warwick. 



h. Adult. New Orleans. Purchased of Mr. Cuming. 



c. Half-grown, Lake Champlain. Purchased of M. Parzudaki. 



d-e. Half-grown : skins, Jamaica. 



f-g. Half-grown. Bahia. From Dr. 0. Wucherer's Collection. 



These specimens agree more with the North American form, 



than with the South American. 



/3. Southern specimens have generally the superciliary region 

 smooth, and D. 13-14, A. 16-17: B. guianensis. 



h, i, h. Adult and young. Demerara. 

 I. Adult. Surinam. 

 m. Adult. 



23. Belone snbtmncata. 



Poet/, Mein. Cub. ii. p. 295. 



D. 17. A. 16. 



Body as broad as deep ; the length of the head is contained twice 

 and six-sevenths in the total (mth the caudal) ; diameter of the eye 

 two-fifths of the length of the postorbital portion of the head. Beak 

 slender, with small and fine teeth. Scales invisible. The anal fin 

 commences a little in advance of the dorsal; caudal subtruncate. 

 iPoey.) 



Cuba. 



24. Selone caudimaculata. 

 Belone caudimaculata, Cuv. Rkgne Anim. ; Cuv. ^ Val. xviii. p. 452. 

 D. 13. A. 15-16. 



The free portion of the tail is compressed, much deeper than broad. 

 The length of the head is contained twice and a third in the total 

 (without caudal) ; its upper surface flat, with a rather shallow median 

 groove of moderate width ; superciliary' region with one or two striae ; 

 base of the intermaxiUaries depressed, maxillary only half hidden by 

 the praeorbital. Teeth rather small ; vomerine teeth none. The 

 (hameter of the eye equals the Avidth of the interorbital space, and 

 is contained twice and three-fourths in the length of the postorbital 

 portion of the head. Body broad, subcylindrical, its depth being con- 

 siderably less than the length of the pectoral fin, which is more than 

 the distance of the opercular margin from the orbit. Ventral fin 

 midway between the eye and the caudal. The middle and hinder 

 dorsal and anal rays subequal in length, short, the last terminating 

 at a considerable distance from the root of the caudal. Caudal fin 

 rounded. Scales rather small, adherent. A small round deep-black 

 spot on the root of the caudal fin. 



Indian Ocean to Australia. 



(/, Adult. Amboyna. Purchased of Mr. Frank, 



