PARACAPILLARIA-EPINEPHELI N-SP (NEMATODA, CAPILLARIIDAE) FROM THE REDGROUPER EPINEPHELUS-MORIO (PISCES) FROM MEXICO

A new nematode species, Pal acapillaria epinepheli, is described from the stomach of the marine fish Epinephelus morio (Valenciennes), the r ed grouper, (Serranidae, Perciformes) from coastal waters of the Gulf of Mexico in Yucatan, southeastern Mexico. It is characterised mainly by its small body (body length of male and female 2.73-3.22 mm and 5.9 4-6.35 mm, respectively), number (31-36) and structure of the stichocy tes, length of the spicule (0.180-0.195 mm), structure of the male cau dal bursa (considerably reduced), structure and size of the eggs (size 0.057-0.063 x 0.027-0.030 mm), and by their site within the host. It is the second Palacapillaria species known to occur in the marine and estuarine fishes of the Gulf of Mexico.