PRIMER HALLAZGO DE Myxine circifrons Garman 1899 (AGNATHA: MYXINIDAE) EN LA COSTA DEL PACÍFICO DE COLOMBIA

Abstract

RESUMENLos peces bruja Myxine circifrons Garman 1899 habitan sobre fondos fangosos en la zona preabisal, capturándose principalmente entre los 500 y 1.500 m de profundidad; su distribución geográfica está ligada a las regiones sub-tropicales prefiriendo aguas relativamente frías. Este trabajo registra por primera vez en aguas del océano Pacífico colombiano a 700 m de profundidad la presencia de los agnathos vivientes más primitivos en los océanos del mundo. ABSTRACTThis hagfish species in habiting muddy bottom, between 500 and 1500 m depth; shows a worldwide distribution occupying all sub-tropical oceans, with preference in cold waters. This paper reports the first catch record of Myxine circifrons Garman 1899, from the Colombian Pacific Ocean.

New records of hagfishes (Myxini: Myxiniformes: Myxinidae) from the Pacific coast of Costa Rica

“…Between 1987 All these characters, agree with diagnosis of the species, and match well with descriptions of specimens by Garman (1899), Chirichigno (1978), Wisner and McMillan (1990), Barss (1993), Wisner and McMillan (1995), Rubio et al (2005), and Nakaya (2009). Additional comparative information about the species and the meristic and morphometric data from the examined specimens are presented in Tables 1 and 2, respectively.…”

“…Another species from the Galapagos Islands-Eptatretus lakeside Mincarone et McCosker 2004-was recently placed in the genus Rubicundus (see Fernholm et al 2013). Myxine circifrons has been previously recorded near San Francisco, California, United States of America, the coast of Baja California, and the Gulf of California, Mexico (Wisner andMcMillan 1995, Hendrickx andHastings 2007), Costa Rica (Wisner and McMillan 1995), the Gulf of Panama (Garman 1899), Colombia (Rubio et al 2005), Ecuador, Peru (Chirichigno 1978, Wisner and McMillan 1995, Nakaya 2009, and Chile (Wisner andMcMillan 1995, Pequeño 1997) (Fig. 3).…”

“…Currently, members of the family are divided into three subfamilies: Myxininae, Eptatretinae, and Rubicundinae (see Fernholm et al 2013). Myxininae includes four genera (Myxine Linnaeus, 1758;Nemamyxine Richardson, 1958;Neomyxine Richardson, 1954;and Notomyxine Nani et Gneri, 1951) and about 27 valid species (Rubio et al 2005, Kuo et al 2010, Fernholm et al 2013, Eschmeyer and Fong 2015. Eptatretinae and Rubicundinae are represented each one by a single genus (Eptatretus Cloquet, 1819;and Rubicundus Fernholm, Norén, Kullander, Quattrini, Zintzen, Roberts, Mok et Kuo, 2013, respectively) and a total combined of about 51 valid species (Eschmeyer and Fong 2015).…”

“…Additional comparative information about the species and the meristic and morphometric data from the examined specimens are presented in Tables 1 and 2, respectively. The comparative information was obtained from Garman (1899), Chirichigno (1978), McMillan and Wisner (1984), Wisner andMcMillan (1988, 1990), McMillan (1999), Rubio et al (2005), and Møller and Jones (2007). Counts and measurements were taken on the left side of the specimens and in all cases follow the criteria of McMillan and Wisner (1984).…”