344 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Clytia grayi, new species. Fig. 23. 
Trophosorne . — Stems unbranched or irregularly branched, strongly annulated, except on the 
middle portion. Hydrothecse very large (twice as large as in 
C. bicophora) , cylindrical, the sides being parallel and bottom 
hemispherical; marginal teeth about 16 in number, evenly 
rounded and not very deeply cut. There is often a tendency to 
a longitudinal plaiting, which shows as short, straight lines 
running downward from between the teeth. Hydranth with 
about 20 tentacles. 
Gonosome . — Gonangia oblong, conspicuously and regularly 
annulated, attached to creeping rootstock. Medusae not known. 
Distribution . — Found growing on living worm tubes com- 
posed of sand. Dredged by the U. S. Fish Commission steamer 
Fish Hawk at station 7051, latitude, 40° 4(Y 30" N. ; longitude, 70° 
4 O' W. Depth 31 fathoms. 
The largest Clytia which lias up to this time been found in 
American waters. 
Named in honor of Mr. George Gray, of the Marine Biolog- 
ical Laboratory at Woods Hole, a man who has done much for 
American marine biology. 
CAMPANULARIA. 
Tropliosome . 1 — Colony unbranched, regularly branched, or 
fascicled. Hydrothecse without operculum and with or without 
marginal teeth. 
Gonosome . — Gonangia producing sexual products which de- 
velop into planulae within the gonangium. No medusae. 
2 a. Clytia grayi Nutting. 
A. Hydrothcca with hydranth (enlarged). 
Key to species of Campanularia found in the Woods Hole region. 
A. Colony not regularly branched. 
a. Hydrothecse with margin entire C. poterium. 
a'. Hydrothecal margin toothed. 
6. Teeth square or truncated at top C. hincksii. 
b'. Teeth very shallow, forming sinuosities or undulations around aperture. Hydrothecal deep, tubular. . C. volubilis. 
b". Teeth very sharp and deeply cut, pedicels long, stem irregularly branched C. minuta. 
A'. Colony regularly branched. 
a. Hydrothecal margin toothed. 
b. Teeth castellated or bimucronate C. neglecta. 
b’. Teeth acute, stem not fascicled C. edwardsi. 
b". Teeth sharp or rounded, stem fascicled C. verticillata. 
a. Hydrothecal margin entire. 
b. Branches arranged in subverticillate manner around a slender axial stem. Pedicels often 
longer than hydrothecse C. amphora. 
b’. Branches not arranged in a subverticillate manner. Main stem giving off alternate pedicels. 
c. Stem angulated, or strongly geniculate. Pedicels long C. angulata. 
c’. Stem flexuose. Pedicels annulated throughout. Gonangia with a large terminal aperture C. flexuosa. 
c". Stem slightly flexuose. Pedicels long, not always annulated throughout. Gonangia with 
a subterminal aperture C. calceolifera. 
Campanularia poterium (Ag. ). Fig. 24. 
(Clytia poterium Ag., Cont. Nat. Hist. U. S., p. 297.) 
Trophosorne . — Stem unbranched, the pedicels arising directly from annulated rootstock; pedicels 
annulate throughout, the annulations often oblique, giving a twisted appearance. Hydrothecse 
deeply campanulate; aperture not toothed; basal portion thickened greatly, so as to include what 
appears to be the uppermost annulation. Hydranths with 24 tentacles. 
1 It appears to be impossible to construct generic characters for the Campanularidse on the basis of the trophosomes. 
The classification of the group is unnatural and unsatisfactory in the extreme, but this is not the place to attempt its 
rectification. 
