252 BENNITT. 



Family PLUMULARIDAE. 

 Genus Aglaophenia. 



Aglaophenia cylindrata Versluys. 



Versluys, 1899, p. 49, figs. 19-21. 

 Ritchie, 1909, p. 261. 



Specimens of Aglaophenia cylindrata were dredged by the "Chal- 

 lenger" "oflf the Bermudas, 30 fathoms." The species is very similar 

 to A. rhyncocarpa Allman, being separated from it by differences in the 

 corbulae. 



Aglaophenia lophocarpa Allman. 



Allman, 1877, p. 41, pi. 24, figs. 1-4. 

 Nutting, 1900, p. 92, pi. 18, figs. 6-8. 



Several immature colonies, about 25 mm. high, were found on the 

 stem of a large colony of Lytocarpus clarkei, dredged in 32 fathoms 

 on Challenger Bank. The gonosome was absent, but the complex 

 trophosome is sufficient for identification. 



Aglaophenia minuta Fewkes. 



Fewkes, 1881, p. 132. 



Nutting, 1900, p. 96, pi. 31, figs. 1-3. 



Congdon, 1907, p. 483. 



Fraser, 1912, p. 378, fig. 43. 



There is a dense growth of this little plumularian on many pieces 

 of floating Sargassum; specimens have also been found at Agar's 

 Island and among material dredged in 32 fathoms on Challenger Bank. 

 The two nematophores noted by Congdon in the axil of each hydro- 

 cladium are mentioned in Nutting's description, though Congdon 

 must in some way have overlooked this statement. No gonosome was 

 found. 



Genus Antennularia. 



Antennularia pinnata Nutting. 



Nutting, 1900, p. 71, pi. 5, figs. 5, 6. 



Growing among encrusting Bryozoa on a floating buoy in Hamilton 

 Harbor and reaching a height of 37 mm,, were a large number of col- 



