First records of Atherinella panamensis in the Central Mexican Pacific coasts
The southern Pacific Atherinella panamensis Steindachner, 1875 is reported in the Pacific Central Mexican Coasts for the first time. A total of 25 specimens (36.9 to 67.9 mm SL) were caught between December 10, 2010 and February 17, 2011 in two different localities of Lázaro Cárdenas, Michoacán, Mexico. The first documented record of the Panama silverside extends the northernmost distributional range of this species by 2,687 km and increases the number of silverside species known in the Central Mexican Pacific. Additional data on length-weight and SL-TL relationships and condition factor are also presented.