HELMINTOS DE PECES COSTARRICENSES DEL PACIFICO

Resumen

With the present contribution we continue the study of the parasites of Costa Rica marine fishes. This time, the material proceeds from Puntarenas in the Pacific. The first of the animal studied is a Monogenoideo Diclidophorido, Choricotyle louisiana I-:largis, 1955, from the gills of Menticirrhus sp.; as we made it's  determination we noted that it coincides in all it's structures with those described first by Hargis (1955), but it's location, Bahía Barataria Jefferson Purish, Louisiana, U.S.A,. is completely opposite to ours. Both were found in the gills of the same genre of fishes, Menticirrhus; the only difference between them is the measure, this specimens from Louisiana are less developed than those from Costa Rica. The two next belong to Digenetic Trematodes of the superfamily Hemiuroidea Faust, 1929. Mecodera oligoplitis Manter, 1940, Family Dinuridae Skrjabin and Guschanskaia, 1954, was first described with specimens from the stomach of fishes of the genre Oligoplites; the same host of the material from Costa Rica and the location in this case does not vary much, as Manter ( 1940) collected them in San Francisco, Ecuador.

Lecithochirium monticelli (Linton, 1898) Skrjabin and Guschanskaja, 1955, has been reported several times by different specialists but always from the North and South Atlantic, now is reported for the first time in Pacific waters.