Primer registro del pez de aguas profundas Harriotta raleighana (Chondrichthyes: Rhinochimaeridae) en la costa de Jalisco, Pacífico mexicano

Abstract

This is the first record of the deep-sea fish Harriotta raleighana, known as longnosed chimaera, in the south of Bahía de Banderas, Jalisco, in the Central Mexican Pacific. Deep waters, up to more than a 1 000 m, characterize the south of this bay. The collected specimen is probably a female, which was found dead floating in the surface of the water, a few meters from the beach. Reports about this species in the Mexican Pacific are sporadic, and collected accidentally, or recently, by using submersibles. This species has a worldwide distribution in deep-sea areas of template waters. In the Pacific it is distributed in California, although it has been observed in the Gulf of California and in the tropical waters of Mexico the only previous report southern of Jalisco was close to Manzanillo, Colima in 2007. Measurements and biological data, which allow the comparison with other specimens found in Mexico, are included.