Abstract
New observations of Pogonophora of the N.E. Atlantic, combined with earlier studies in the N.W. Atlantic and Caribbean, show that on both sides of the ocean there is a division into upper slope-, lower slope-, and deep-water species. The European side has a distinct group of species living in the Mediterranean outflow (1000-1500 m). Lower-slope species are geographically widespread. Deep-water and upper-slope species are more restricted in their distribution.