15^ 



HYDROIDA II 



Campanularia groeiilaiidica is a circumpolar arctic species belonging to tlie littoral region. It 

 is undoubtedly of more common occurrence than the data to hand appear to show; this is probably 

 owing to its having been confused with Campamilaria Hiucksii Alder, the j^rismatic hydrothecas of 

 which present a certain likeness to those of Cninpamilaria grociilandica. That such confusion has taken 

 place as far as the Norwegian waters are concerned would seem to be beyond doubt; we find here, 

 W\2XCa7ripanularia grocnlandica moves southward at any rate as far as Trondhjem Fjord (fig. LXXXII). 

 The species has once or twice been encountered off the east and west coasts of Iceland ; on the east 

 coast of Greenland it has not been met with south of 76°, but along the whole of the west coast, 

 which is its classical ground, it is fairl\- common, occurring often in company with Campanularia 

 volubilis. 



tooom. iOOOrn. 



I'ig. LXXXII. Finds of Campamdaria groenlanJicn in tile Nortlifrn Atlantic. 



Campanularia speciosa Clark. 



1876 Campamilaria speciosa, Clark, Report on the Hydroids Alaska, p. 214, pi. 9, fig. 11. 



1913 Campanularia maguifica, Frasei', H\droids from Vancouver Island and Nova vScotia, p. 164, pi. 



1 1, figs. 1 — 3. 



Creeping colonics, from the stolons of which proceed shorter or longer, irregularlv wrinkled 

 or ringed stalk.s, terminating under the hydrotheca itself in a ball-shaped joint. The large hydrothecs 

 are swollen at the bottom, with geuth- curving sides, narrowing upward.s, but rapidly expanding again 

 distally near the aperture, so that the ojiening margin curves strouglv outwards. The margin is 



