biology, ecology and species diversity of the two annelid taxa Parergodrilidae and
Orbiniidae, the early branching group of Orbiniida sensu Struck et al., 2015 according to
molecular studies. An effort to identify gaps of knowledge is given to understand the
distribution, dispersal and the diversity Parergodrilidae and Orbiniidae hold, as well as to
give several directions for future research. Parergodrilidae is a taxon of interstitial annelids …