344 



01 THi: I .\tTKI) .VL'ATKS Kl.SH OiM.MlSSloN. 



Clytia grayi, new species. Fig. 23. 

 IVop/iosom?. Stems unbranched or irregularly branched, strongly annulated, except on middle 



portion. Hydrothecse very large 



23. Clytia ffrai/i Nutting. 



A. Hydrotheca with hydranth (enlarged ) . 



(twice as large as in C. Ijirrijthoru), 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. Hy- 

 dranth 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 Fixh Hawk at station 7051, lati- 

 tude, 40 46' 30" N. ; longitude, 70 40 / W. Depth 31 fathoms. 



The largest Clytia yet 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. 



CAMPANTJLARIA. 



TrophosomeS Colony unbranched, regularly branched, or 

 fascicled. Hydrotheca;, without operculum and with or without 

 marginal teeth. 



Gonosome. Gonangia producing sexual products which de- 

 velop into planuln; within gonangium. No medusre. 



K?u in species of Campanularia foimd in the Woody Hole region. 



A. Colony not regularly branched. 



a. Hydrothecre with margin entire C. potcrium. 



a'. Hydrothecal margin toothed. 



6. Teeth square or truncated at top C. hincksii. 



b'. Teeth very shallow, formingsinuositiesornndnlationsaroundaperture. Hydrothecae deep, tubular. .C. volubilit, 



b". Teeth very sharp and deeply cut, pedicels long, stem irregularly branched C. miniita. 



A'. Colony regularly branched. 

 a. Hydrothecal margin toothed. 



6. Teeth castellated or bimucronate C. negteeta, 



b'. Teeth acute, stem not fascicled c. edwardsi- 



b". Teeth sharp or rounded, stem fascicled c. vcrtfiillntQ. 



a. Hydrothecal margin entire. 



b. Branches arranged in subverticillate manner around a slender axial stem. Pedicels often 



longer than hydrothecce 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. flrmosa. 



c". Stem slightly flexuose. Pedicels long, not always annulated throughout. Gonangia with 



a subterminal aperture C. calc?ol(fe>'tt 



Campanularia poterium (Ag. ). Fig. 24. 

 (Cont. Nat. Hist. U. S., p. 297.) 



Troplwsome. Stem unbranched, the pedicels arising directly from annulated rootstock; pedicels 

 annulate throughout, the annulations often oblique, giving a twisted appearance. Hydrothecre 

 deeply campanulate; aperature not toothed; basal portion thickened greatly, so as to include what 

 appears to be the uppermost annulation. Hydranths with 24 tentacles. 



Gonosome. Gonangia rather slender, not decidedly annulated, growing from the rootatock. The 

 sexual products pass through part of their development in an acrocyst resting on top of gonangium. 



i It appears to be impossible to construct generic characters for the Campanularldy, 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. 



