Meristogram Analysis of the Acanthocephalan Genus Pomphorhynchus in North America

Publisher Website
Google Scholar
Abstract
Meristogram analysis revealed that specimens of P. bulbocolli and P. rocci can be distinguished by measuring the length of 1 hook in the 60-80 percent-position region of the proboscis. Percent-position of a hook is calculated by multiplying the counted posteriad position number of the hook by 100 and then dividing by 1 + 1 the number of hooks in that longitudinal row. Hooks in the 60-80 percent-position region are longer than 37 .mu.m in P. rocci and shorter than 37 .mu.m in P. bulbocolli. P. rocci was found not only in the coastal marine fishes to which it was formerly thought to be restricted, but also in freshwater fishes of coastal brackish and freshwaters.

This publication has 3 references indexed in Scilit: