HYDROIDA II 



r 57 



ever, (Kramp 1914 p. 1069; Nutting 1915 p. 31) as to its also belonging to the antarctic region, 

 are incorrect. Hickson and Gravely (1907 p. 23) mention, it is true, Campanularia verticillata var. 

 grandis from Mc Murdo Bay, but what they found there was, as Vanhoffen has pointed out (1909 

 p. 294) really the altogether different antarctic species Campanularia lobata Vanhoffen, which has but 

 one character in common with our northern Campanularia verticillata: the fact that the colonies are, 

 as in the latter, rhizocaulomes. Campanularia verticillata is thus not a bipolar species. — Campanu- 

 laria verticillata belongs to the middle parts of the littoral region, but may also be met with in quite 

 shallow water; not infrequently also, it may penetrate down into the abyssal region, where it has even 

 been found at no less than 600 metres' depth. Its distribution in our seas (fig. LXXXI) shows that 

 it is restricted to the coastal waters. The species is not uncommon on the west coast of Greenland ; 

 on the east coast, however, it has only once been taken north of 76° In Iceland waters, it seems to 

 keep chiefly to the southern coast; it is also found scattered about the Faroe Islands. Round the 

 British Isles and off the coast of Norwav it is of verv common occurrence. 



Campanularia groenlandica Levinsen. 

 1893 Campanularia groenlandica, Levinsen, Meduser, Ctenophorer og Hydroider p. 26 pi. 5 figs. 10 — 12. 



Creeping colonies, from the stolons of which the hydrotheca stalks proceed; the latter mav be 

 ringed throughout their entire length, or, more commonly, having a smooth middle part; more rarely, 

 the rings are found to be almost entirely lacking. The stalk invariably terminates under the hydro- 

 theca in a ball-shaped joint. The large hydrothecae are about i 1 2 times as long as broad, typically 

 bell-shaped, with gently curving sides, the greatest bend occurring in the basal third to fourth of the 

 hydrotheca. At the aperture, the hydrotheca is polygonal in transverse section, with from ten to fifteen, 

 generally twelve or thirteen straight or slightly concave sides, each running out at the opening into 

 a markedly prominent rounded tooth. In the intervals between the teeth, the margin is slightly curved 

 outwards. The basal chamber is quite low, and bounded at the top by a faintly developed narrow 

 ring-shaped inner thickening of the hydrotheca wall. 



The gonothecae proceed from the stolons, and are attached to the same by a rudimentary stalk. 

 They are elongated oval or bottle-shaped, with a fairly long, narrowly cylindrical neck; they are 

 smooth or indistinctly wrinkled, generally somewhat asymmetrical; the neck is straight or more or 

 less curved. 



Material: 



"Ingolf" St. 31 66°35' N., 55°54' W., depth 88 fathoms i,6° 



- 34 6 5 °i 7 ' N, 54 °i 7 ' W, 55 



- 87 6 5 °02,3' N., 23°56, 2 ' W., — no 



Greenland: Davis Strait 80 - (without further details) ) [Levinseu's 



Store Hellefiskebanke ( — — ) J type-specimens] 



Iceland: 64°i7,5' N., 1444' W., — 75 metres 5,12° 



Bredebugt, 65°45,8' N., 23°55,2' W., depth 30 fathoms. 



