354 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Lovenella grandis, new species. Fig. 45. 
Trophosome . — Stem simple, giving off regularly alternating, short, annulated pedicels, one from 
each internode. Hydrothecas very large, cylindrical; margin with 10 regular sinuations from which 
arise the 10 sharply pointed segments of the operculum. Hydranths large with a conical proboscis 
which becomes dome-shaped on retraction, and about 16 rather rigid tentacles. 
Gonosome . — Not known. 
Distribution . — Dredged from Newport Harbor, off Castle Hill. 
This beautiful species was given me for description by Mrs. Virginia Barrett Gibbs, of Nev r port. 
OPERCULARELLA. 
Trophosome . — Stem annulated throughout. Hydrothecse ovate in out line, the margin not distinct, 
the segments of the operculum appearing to be very thin and greatly elongated marginal teeth which 
converge to form the operculum. 
Gonosome . — The mature gonangia bear acrocysts. 
Key to sjxcies of Opercularella found in the Woods Hole region. 
Hydrothecae larger, with more deeply cleft segments of the opercula 0. lacerata. 
Hydro thecae smaller, with less deeply cleft segments of the opercula 0. pumila. 
Opercularella lacerata Hincks. Fig. 46. 
(British Hydroid Zoophytes, p. 194.) 
Trophosome . — Stem annulated throughout, sparsely branched, or unbranched. Hydrothecse with 
short pedicels, oblong ovate in outline; opercular segments 8 to 10, very long and slender, somewhat 
curved. Hydranth with conical proboscis and about 16 tentacles. 
Gonosome . — Gonangia large, ovate, borne on ringed pedicels, and, when mature, bearing globular 
acrocysts on their summits. 
Distribution . — New Haven, Conn., on piles of Long Wharf. (Clark.) 
Opercularella pumila Clark. 
(Trans. Conn. Acad., vol. hi, p. 61.) 
Like 0. lacerata, but with smaller hydrothecse and less deeply cleft segments of the operculum. 
In comparing Dr. Clark’s description and figure with sketches of 0. lacerata made by myself in 
England I have serious doubts as to the validity of the former species, but consider it best to let it 
stand here, as I have not seen the type specimens. 
