Ascarophis

Ascarophis is a genus of parasitic nematodes, belonging to the family Cystidicolidae. Species of Ascarophis are parasitic as adults in the gastrointestinal tract of marine and estuarine fishes.

Species
According to the World Register of Marine Species, the genus currently (2019) includes many species. A few are listed here:


 * Ascarophis arctica Polyansky, 1952
 * Ascarophis ayalai Caballero, 1975
 * Ascarophis beryx Kataitseva, 1979
 * Ascarophis brasiliensis Pinto, Vicente & Noronha, 1984
 * Ascarophis capelanus Nikolaeva & Naidenova, 1964
 * Ascarophis carvajali Muñoz & George-Nascimento, 2007
 * Ascarophis cestus Chitwood, 1934
 * Ascarophis cooperi Johnston & Mawson, 1945
 * Ascarophis crassicollis Dollfus & Campana-Rouget, 1956
 * Ascarophis distorta Fusco et Overstreet, 1978
 * Ascarophis morrhuae Van Beneden, 1871 (Type-species) a parasite of the Atlantic cod Gadus morhua.

Several subgenera have been proposed, with the following species:
 * Subgenus Ascarophis (Dentiascarophis) Moravec & Justine, 2009
 * Ascarophis (Dentiascarophis) adioryx Machida, 1981
 * Subgenus Ascarophis (Paraspinitectus) Moravec & Justine, 2009
 * Ascarophis (Paraspinitectus) beaveri Overstreet, 1970
 * Subgenus Ascarophis (Similascarophis) Muñoz, González & George-Nascimento, 2004
 * Ascarophis (Similascarophis) chilensis (Muñoz, González & George-Nascimento, 2004) Moravec & González-Solís, 2007
 * Ascarophis (Similascarophis) marina (Szidat, 1961) Ivanov, Navone & Martorelli, 1997
 * Ascarophis (Similascarophis) maulensis (Muñoz, González & George-Nascimento, 2004) Moravec & González-Solís, 2007
 * Ascarophis (Similascarophis) nasonis Machida, 1981
 * Ascarophis (Similascarophis) richeri Moravec & Justine, 2007