IUCN threat status:

Least Concern (LC)

Comprehensive Description

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Description

  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).

   

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© Shorefishes of the tropical eastern Pacific online information system. www.stri.org/sftep

Source: Shorefishes of the Tropical Eastern Pacific Online Information System

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