354 



BULLETIN OF THE UNITED STATES FISH COMMISSION. 



Lovenella grandis, new species. Fig. 45. 



TrophoKome. Stem simple, giving off regularly alternating, short, annulated pedicel?, one from 

 each internode. Hydrothecic 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. 



t, ',,/, i.i/i, ix'. Not known. 



IHxtrilivtiiiii. Dredged from Newport Harbor, off Castle Hill. 



This beautiful species was given me for description by Mrs. Virginia Barrett Gibbs, of Newport. 



OPEBCDLABELLA. 



Trnfthnanrnf. Stem annulated throughout, Hydrotheea? ovate in outline, the margin not distinct, 

 the segments of the operculum appearing to be very thin and greatly elongated marginal teeth which 

 converge /o form the operculum. 



tiiiiiosiii/it'. The mature gonangia bear acrocysts. 



Keij in n/n'fi,'.i nf Opercutareila found in the W/iuiI.t Jlu/e region. 



Hydrotheca; larger, with more deeply cleft segments of the opercula 0. laceraia. 



Hydrotheeoj smaller, with less deeply ck'ft segments of (he opercula O.pumUa. 



in. <>i ri'iilnrflln liien-ntn Hineks. 



IT. f'nii/iTllii syringa (Linn.). A. Hydrotheea (enlarged). 



Opercularella lacerata Hineks. Fig. 46. 

 (British Hydroid Zoophytes, p. 194.) 



Trophoiomf. 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. 



Gonomme. 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. in, p. 61.) 



Like 0. 1/icerata, but with smaller hydrothecfe, 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. 



