490 PROCEEDINGS OF THE ACADEMY OF [July^ DESCRIPTION OF NEW SERPULIDS FROM BERMUDA WITH NOTES ON KNOWN FORMS FROM ADJACENT REGIONS. BY KATHARINE J. BUSH, PH.D. The following descriptions of species of Serpulids are of forms (six of which are considered as new to science) collected at Bermuda by Professor A. E. Yerrill and party, in 1S9S and 1901 ; also at the Island of Dominica, W. I., by A. H. Yerrill, in 1906. A full description is given of the rediscovered species Pomatostegus bracliysoma of Schmarda who failed to mention characters which, at the present time, are considered of great importance in determining genera and species. Notes are also given'of some of Mcintosh's species in which the genera is questionable; but the specimens are not suf-ficiently well preserved to reveal anyTadditional facts, so that the exact genera must still remain undetermined. Mention is made of most, if not all, of the species belonging to the group found in the southern waters, and figures are introduced of important features of known Mediterranean forms collected at Beirut, Syria, and thought to have been incorrectly determined. SALMACINOPSIS gen. nov. This genus resembles Claparede's genus Salmacina, 1869 and 1870, (type S. incrustana Clap.), in having few branchiae, no operculum and 9 thoracic segments, but differs in having simple tapered setae without fin-like basal expansion, in the collar fascicle and different shaped uncini, which are similar to those in the genus Protula, from which the 9 thoracic segments, absence of thoracic membrane and the peculiar branchiae readily distinguish it. Type, the following species: Salmacinopsis setosa sp. nov. Numerous slender, rounded, rather fragile tubes attached their entire length were taken from a piece of dark green glass. They are of uniform diameter, more or less irregularly curved, without sculpture, roughened by irregular lines of growth. Body rounded, of uniform size, with broadly rounded blunt posterior end. Anteriorly without distinct segmentation but posteriorly divided into well-rounded segments on one side. Thoracic region defined only by setae and tori, there being 9 fascicles of seta? alternating with
BioStor
