A NEW SPECIES OF ASCAROPHIS (NEMATODA: CYSTIDICOLIDAE) PARASITIZING CLINOCOTTUS ANALIS (PISCES: COTTIDAE) FROM BAJA CALIFORNIA, MEXICO

AGUILAR AGUILAR ROGELIO; RUIZ CAMPOS GORGONIO; MARTORELLI SERGIO R.; MONTES MARTIN MIGUEL; MARTINEZ AQUINO ANDRES

JOURNAL OF PARASITOLOGY

AMER SOC PARASITOLOGISTS

Lugar: Washington, Estados Unidos; Año: 2019

0022-3395

Ascarophis morronei n. sp. (Cystidicolidae), is described from the stomach wall of Wolly Sculpin, Clinocottus analis (Cottidae), from northwestern Baja California, Mexico. Collected fishes were studied using both light and scanning electron microscopy. Sequence fragments for 18S rDNA molecular markers were obtained from the new nematode species, in order to test its position within the family Cystidicolidae under a phylogenetic context. Main characters distinguishing this new species include the reduced pseudolabia and the morphology of the eggs, distances of nerve ring and excretory pore from the anterior end, and left spicule of males. The new species described here is the first Ascarophis species reported as adult stage from the Northeastern Pacific, and the first one recorded for the genus Clinocottus.