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 



