Balanus dentivarians National Museum of Natural History. CC0 Usage Conditions Apply Click for more information. Click to view download files. Click to view IIIF info. This media is in the public ...

A FEW species of animals which were known to be marine have become freshwater dwellers. An example of these freshwater mutants is the gastropod Hydrobia jenkense which, according to Ellis1, was ...

THE parasitism of barnacles of many species by various isopods, gregarines and trematodes, often with the resultant castration of the host, is well known. Recent observations on Balanus balanus ...

Balanus balanoides niveus National Museum of Natural History. Click to open image viewer. CC0 Usage Conditions Apply Click for more information. Click to view download files. Click to view IIIF info.