HYDROIDA 27 



recorded from vSpitzbergeu at the dcptli of only 38 111. (P.roch lyog). Evidence of its occurrence 

 in the Kara Sea is still wanting. From this locality a sijecimen is in hand, determined by Bergli 

 (1887) as Tubnlarid rcgalis. As a matter of fact, the specimen is a Coryinorplid^ probably a Cory- 

 morpha glacialis M. Sars. — A remarkable exception to the habitat stated is formed by the frequent 

 occurrence of the species in the Trondhjem Fjord, where it is found in alniudance on the Lophohclia- 

 reefs. In spite of the luxuriant development which it attains iu the Trondhjem Fjord, it must probably, 

 like Corymorpha grociilaiidica (Allman), ]\[yrioflirl(i plirygia (F'ab r i ci us), and Slcgopoma plicatilc 

 (G. (). vSars), be accounted for as an arctic relict in this localit)'. 



Tubularia larynx FJlis et vSolander. 

 1786 Tiibnlaria hiryiix^ F^Uis et Solauder, The Natural History of Many Curious and Uncommon 



Zoophytes, p. 31. 

 1864 — hiiiiiilis^ Allman, Notes on H)'droida, p. 57 and 60. 



Colonies whose long polyp stems, generally unbranched and irregularly curved, are separated 

 quite down to the tangled network of basal tubes. The stems are covered with a fairly vigorou.s, but 

 colourless perisarc, which is irregularly wrinkled or more rarely quite smooth. The polyp wears a 

 basal whorl of up to 25 tentacles, attaining a length of 8 nun.; the numerous distal tentacles, 2 or 3 

 mm. long, are densely crowded round the orifice in a whorl consisting of several rows. 



The gonophores are eumedusoid, without radial canals, but with a rudimentary circular canal; 

 they are most frequently provided with three rudimentary tentacles. The gonophores are supported by 

 6 — 12 short blastost_\les, which may be erect or hanging. The actiuula larvae, when deliberated, show 

 filiform tentacles. 



Material: 



Iceland: Re\kja\ik. 



Gustsey depth 4 fath. 



Keflavik — 15—16 — 



F'axebugt three miles N 37 F) Keflavik — 19,5 — 



Off Havnefjord — 25 — 



Stykkisholm — 20—30 — 



Skagi — 40 in. 



Vestman Islands — 28 fath. 



The F'aroe Islands : Andefjord — 16—23 — 



The North Sea (')0°35' N., i°5o' W — 50 



The synonymy of the var\ing species has been thi)roughl\' accounted for b\- F'enchel (1905). 

 He points out that, as is also maintained by P>onnevie (1899) and b\- Swenander (1903), 'I'nbnlaria 

 coro)iata Abildgaard must be subsumed under Tubularia larynx. On the other hand, it is not plaiul\- 

 seen whether he regards Tubularia Iiniiiilis Allman to be a peculiar species. On a closer exami- 

 nation, indeed, the characters pointed out by Bonnevie (1899) as distinguishing marks, prove to 

 be of no particular systematic importance. The wrinkling of the stem is strongly varying from 



4* 



