Argulus yucatanus N. Sp. (Crustacea: Branchiura) Parasitic on Cichlasoma urophthalmus from Yucatan, Mexico

Abstract

A new species, Argulus yucatanus, is described based on 14 specimens from Cichlasoma urophthalmus collected in Celestun Lagoon, Yucatan, Mexico. Diagnostic characters include the number of and shape of sclerites in the suction cup support rods, shape of and position of respiratory areas, and modifications on the legs of males. In males, the coxae of the 2nd legs bear an angular lobe with 5-7 erect scales and 13-21 sensilla. The new species is compared to Argulus funduli Krøyer, 1863, A. chromidis Krøyer, 1863, A. cubensis Wilson, 1936, A. rhamdiae Wilson, 1936, and A. varians Bere, 1936.RESUMEN Una nueva especie, Argulus yucatanus, está escrito de catorce especimenes de Cichlasoma urophthalmus colectaron del Estero de Celestún, Yucatán, México. Varios caracteres la distinguen con inclusión del numeró de y de la forma de escleritos en las rayas de las ventosas, de las áreas respiratorias y de las modificaciónes en las patas de los machos. En los machos, las segundas parejas de las patas tienen un lóbulo angular con 5-7 escamas erguidas y 13-21 sensillas.

Global diversity of fishlice (Crustacea: Branchiura: Argulidae) in freshwater

“…Eggs often can be seen in the thorax of an adult female, and in some species eggs occur in the thorax and in the lobes of the carapace as well. Shapes of respiratory areas, shapes of carapace and abdomen, number of sclerites in suction cup support rods and number of support rods per suction cup (Argulus), features of the second maxillae (especially basal plate), pigmentation, and secondary sexual characters of males are some of the most useful taxonomic characters for distinguishing species (Wilson, 1902(Wilson, , 1944Sikama, 1938;Meehean, 1940;Poly, 2005).…”

Parasitic crustaceans (Branchiura and Copepoda) parasitizing the gills of puffer fish species (Tetraodontidae) from the coast of Campeche, Gulf of Mexico

“…Members of Argulus have a wide range of fish hosts and environments (freshwater and marine) around the world. In the GoM, 10 species have been reported, especially from the north-northwest coast of the USA (Poly 2009) (Pineda et al 1995), Argulus ambystoma Poly, 2003 on Ambystoma dumerilii Dúges, 1870 from Lake Patzcuaro, Michoacan (Poly 2003), and Argulus yucatanus Poly, 2005 on Mayaheros urophthalmus Günther, 1862 (as Cichlasoma urophthalmus) from Yucatán (Poly 2005). All these records are from freshwater fishes, except for A. flavescens, which occurs in freshwater, marine, and brackish-water fishes (Suárez-Morales et al 1998).…”

Prevalence of fish lice, Argulus (Crustacea: Branchiura) in freshwater and two ornamental fishes of Iran

“…Argulus parasites are morphologically broad, oval, and flat on both sides (Radkhah 2017) covered by chi-tosan carapace (Figure 1). They have a part called the maxilla, which usually acts as a powerful suctorial organ and is adapted for suction during feeding (Poly 2005). Argulus parasites have thoracic appendages that are used to move when joining a host (Wafer et al 2015).…”