HYDROIDS OF BEAUFORT, NORTH CAROLINA. 



357 



Fig. 13. — Campanularia Integra MacGillivray. 

 some; B, gonosome. 



A, tropho- 



Gonosome.— Gonangium very large, deeply corrugated, the corrugations having a distinct keel; 

 attached by a short annulated pedicel to the stolon. 



Distribution. — On a piece of board found floating on the open ocean near Cape Lookout. 



No gonosome was found on these specimens. The drawing was made from a Puget Sound 

 specimen. 

 ? Campanularia raridentata Alder. 



Ctimpatntiarta raridcntataAlder, Ann. and>[ag. Nat. Hist., 

 3d ser., IX, 1S62, p. 315. Hincks, Br. Hydroid Zo- 

 ophytes. 1868, p. 176. Fraser, West Coast Hydroids, 

 1911, p. 33. 



Trophosome. — Colony unbranched, arising from 

 a stolon which at this point has a distinct elevation 

 somewhat bulbous in appearance ; pedicel annulated 

 at the base and below the hydrotheca, sometimes 

 throughout almost the whole length; hydrothecae 

 long and narrow, tapering but slightly from margin 

 to base; teeth usually five in number, deep and 

 rounded at the tip. 



Gonosome. — Unknown. 



Distribution. — Dredged near the sea buoy in 6 

 or 7 fathoms of water. 



Since the gonosome has not been observed, this species can be put in the genus Campanularia only 

 provisionally. 



There has been much confusion of this species with Thaumanlias inconspicua Forbes, though when 

 the two are compared the resemblance is not marked. The matter has been discussed in my West 

 Coast paper. 



Genus CLYTIA. 



Trophosome. — Colony unbranched or irregularly branched. 



Gonosome. — Gonophores produce medusx with 4 radial canals and 4 

 marginal tentacles when liberated, 8 lithocysts between the bases of the 

 tentacles. 



Key to Species of Clytia in the Beaufort Region. 



A. Hydrotheca; deeply campanulate, with few teeth C. coronata. 



B. Hydrotheca; cylindrical, with sharp teeth C. cylindrka. 



C. H)'drothec:e broadly campanulate, with sharp teeth C. joluisloiii. 



D. Hydrothecae large, cylindrical, with deeply cut teeth C. longicyatha. 



E. Hydrothecae broadly campanulate, with rounded teeth C. notijormis. 



? Clytia coronata (Clarke). 



Campanularia coronals Clarke, Bull. Mus. Comp. Zool.. Harvard, i8t<), p. 342. 



Trophosome. — Colony unbranched or with a few irregular branches which 

 take an abrupt bend near their origin and pass out parallel and close to the main stem. When the 

 colony is unbranched the pedicel is strongly annulated proximally and distally and may be annulated 

 throughout. This also applies to the individual pedicels in the branched forms, but besides this the 

 main stem is annulated above the origin of the branch or pedicel. The hydrothecae are rather long, 

 tapering gradually from below the margin to the base. There are eight or nine distinctly cut teeth that 

 are not especially acute. 



Fig. 14. — Campanularia rari- 

 dentata Alder. A and B 

 single colonics. 



