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| Common names: needlefish (English), agujón (Espanol), marao (Espanol) |
Tylosurus pacificus (Steindachner, 1876)
Pacific agujon needlefish
Elongate, relatively slender, rounded body; both jaws very prolonged in a beak that is relatively long, slender and upcurved, with many pointed teeth (vertical in both juveniles and adults); no keel under tip of chin ; dorsal rays 21-23 (rarely 24), raised front lobe relatively low; anal rays 18-21 (usually 19-20); pectoral rays 11- 14; pectoral and pelvic fins relatively short (8.1-12.5% and 7.1-10.0% of body length, respectively); 303-405 scales before dorsal fin; tail fin deeply forked, lower lobe much longer, tail base with a keel.
Dark bluish green above, silvery below; a dark blue stripe on middle of sides.
Size: to 130 cm.
Habitat: pelagic coastal and oceanic.
Depth: 0-10 m?
Southern Baja and the Gulf of California to Peru; the Galapagos islands.
Differs from T. acus melanotus in lacking a keel under the tip of the chin (present in T. a. melanotus); 21-23 dorsal fin rays (24-26 in T. a. melanotus); 18-21 anal rays (21-24 in T. a. melanotus); and 74-80 vertebrae (vs 89-92 in T. a. melanotus).