| spinitectus macrospinosus n. sp. (nematoda: cystidicolidae) from the channel catfish ictalurus punctatus in southern manitoba and its distribution in other ictalurus spp. | spinitectus macrospinosus n. sp., a parasite of the channel catfish ictalurus punctatus, from the red and assiniboine rivers in southern manitoba, canada, is characterized by spines reaching a maximum length of 21.8-26.8 microm (means for males and females, respectively) in the anterior esophageal region, arranged in 4 sectors in the anterior region of the body. spines in this region of the body increase in size and decrease in number (from a maximum of 6 to 3 per sector). the combination of spi ... | 2003 | 14533691 |