360 REVIEW OF SPECIES OF BELONID^. 



No gill-rakers. 



Dorsal fin long and low, not at all falcate, its rays gradually and 

 slowly shortened from the first; first dorsal ray 2 in postorbital part of 

 head. Anal fin falcate, its insertion a little behind that of dorsal, its 

 lobe 1^ in postorbital part of head. 



Caudal fin pointed, its length 1^ times postorbital part of head. 

 Ventral inserted far back, midway between base of caudal and base of 

 pectoral. 



Pectoral very narrow and pointed as long as postorbital part of head. 



Color in our specimens entirely faded; the middle of sides apparently 

 with a darker lateral shade. 



Our specimens of this species are from Itaituba, in Brazil. Accord- 

 ing to Dr. Steindachner, it is very abundant in the Amazon Eiver. 



Steindachner says that the "'oldest name for this species is that 

 of Belonef guianensis Schomburgk; since, however, no description is 

 given in Schomburgk's work, that proposed by Dr. Giinther may be re- 

 tained." We have not examined either Schomburgk's work or that of 

 Miiller & Troschel, but it is presumable that either the one or the other 

 contains description enough to justify the use of Schomburgk's name, 

 in preference to the later one of Valenciennes. We have examined 

 the types of Belone scolopacma in the museum at Paris. They belong- 

 to the species here described. The very bad condition of the specimens 

 led Valenciennes to make a gross miscount of the fin-rays ("D. 14; A. 

 17"). 



RECAPITULATION. 



We here repeat the list of the species of American and European 

 Belonidce recognized by us, with an indication of their geographical dis- 

 tribution : C. (California) ; P. (Panama fauna) ; E. (Europe) ; W. (West 

 Indies) ; R. (Rivers of Brazil) ; U. (Atlantic Coast of the United States). 



Genus 1. BELONE Cuvier. 



1. Belone helone L. E. (Perhaps two or three species iucluded in the synonymy.) 



Genus 2. TYLOSURUS Cocco. 

 ij Tylosuras. 



2. Tylosurus notatus Poey. W. U. 



3. Tylosurus scapularis Jordan & Gilbert. P. 



4. Tylosurus suhiruncatus Poey. W. U. (Synonymy somewhat doubtful; perhaps 



should be called hr'asiliensis.) 



5. Tylosurus euryops Bean &c Dresel. W. 



6. Tylosurus diplotwnia QoYtQ. W. (Species unknown to us.) 



7. Tylosurus 7nicrops Giinther. R. 



8. Tylosurus amazonicus Steindachner. R. (Perhaps identical with T. microps.) 



9. Tylosurus ardeolus Cuv. & Val. W. (Species doubtful as to name and synonymy; 



unknown to us.) 



10. Tylosurus stolsmnnni Steindachner. P. 



11. Tylosurus exilis Girard. C. 



12. Tylosurus marinus Bloch & Schneider. U. 



13. Tylosurus almeida Qnoy &, Gaimard. W. (Perhaps to be called T. Z»ra8i7ien8i« ; 



. probably a variety of T. marinus.) 



