82 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 91 



Genus OBELIA Peron and Lesueur 



? OBELIA RACEMOSA, new species 



Plate 15, Figure 7. 



TrophosoTiie. — Colony large, with a main axis 25 cm. and a few 

 large branches almost as large as the main axis; from these small 

 branches and branchlets are given off that distally are clustered in 

 rather stiff racemes. The main stem and larger branches are strongly 

 fascicled and even the secondary branches may be so in the proximal 

 portion ; the primary branches and the larger secondary branches are 

 annulated only above the nodes, but the distal branchlets and the 

 pedicels are extensively annulated; the longer ones are annulated 

 proximally and distally, with a short, smooth portion between, of 

 greater diameter, so that the branchlet or pedicel seems to bulge defi- 

 nitely in this portion ; the shorter pedicels are annulated throughout. 

 The hydrothecae, appearing in close clusters, are broadly campanulate, 

 at least as broad as deep; margin entire. The larger branches and 

 the main stem are dark brown, the branchlets and pedicels much 

 lighter. 



Gonosome. — ^Not observed. 



Type.—\J.S:^M. No. 4883. Western Bank, off Cape Breton Island, 

 50-65 fathoms, June 7, 1880. 



Remarks. — This species bears some resemblance to Obelia plicafa 

 Hincks, but it is a larger, coarser species, the ultimate branches are 

 more rigid, the hydrothecae are clustered, and the hydrotheca is more 

 broadly campanulate. 



Family CAMPANULINIDAE 

 Genus EGMUNDELLA Stechow 



EGMUNDELLA GRANDIS, new species 



Plate 16, Figure 8. 



Trophosom^. — ^Zooids growing singly from an irregularly reticulate 

 stolon to a height of 3 mm. ; pedicel straight, rigid, smooth except for 

 two or three annulations at each end ; hydrotheca of the usual turbinate 

 type, 0.7-0.8 mm. in height ; operculum of 12 segments. Nematophores 

 very small for this genus, spherical, with a short pedicel, sparingly 

 scattered over the stolon, and occasionally occurring on the pedicels. 



Gonosofne. — Not observed. 



Tj/pe.—JJ.S.'N.M. No. 43455. Taken by the United States Fisheries 

 steamer Fish Hawk at station 897, latitude 37°25' N., longitude 74° 18' 

 W., off the mouth of Chesapeake Bay, 157^/^ fathoms, November 16, 

 1880. 



