Genus: Istiophorus, Sailfish
sword round
D1 large long sail
pelvics very long, thin
ISTIOPHORUS
SAILFISH
Body fairly compressed; bill long, slender, rounded in cross section; adults with small teeth; 1st dorsal fin long based, sail like, much higher than body depth, close to small 2nd dorsal; pectoral fins long and pointed; pelvic fins very long, reach almost to anus; 2 anal fins; 2 keels on side of tail fin base; tail fin large, strongly forked; body covered with small, triangular scales; lateral line visible, curved over pectoral, straight to base of tail fin.
A circumtropical genus with 1 species, which occurs in the tropical eastern Pacific.
