The second volume of the Catalogue of Cretaceous Bryozoa in the British Museum, of which the manuscript has been completed, contains the description of various new Cretaceous species. Such, a catalogue inevitably takes some months in passing through the press, during which it might happen that the species were anticipated by description elsewhere. To avoid the risk of reduplication of the names it is most convenient to publish the diagnoses. Fuller accounts of the species, with illustrations, will be given in the Catalogue.