22 
Calycella syringa Jåderholm 1909. 
Campanulina — Broch 
Calycella —  Kramp 1911. 
Levinsen records this species from several places between 
Frederikshaab and Godhavn, Disco. Jåderholm records it from 
Lat. 701/22 N. Found by the "Tjalfe” in Godthaab Fjord, Stat. 52 
(a few hydrothecæ on Sertularella polyzonias), near Fiskenæs, 
Stat. 465 (sparingly on Sertularella tricuspidata and Sertularella 
gigantea), near Holstensborg, Stat. 88 (in great abundance on La- 
fogina maxima; some of the hydrothecæ have a very long pedicel), 
near Ritenbenk (not uncommon on Campanularia verticillata and 
Eudendrium rameum). — In the Arctic the species has a circum- 
polar distribution; moreover it occurs along the coasts of Europe 
and North America, in the Pacific at least as far south as Cali- 
fornia; im the Mediterranean, the Read Sea, and the Yellow Sea, 
near Hawaii, and in the Antarctic. 
Tetrapoma quadridentatum (Hincks) Levinsen. 
Calycella quadridentata Hincks 1874, 
reen renee Levinsen 1892. 
åderholm 1909. 
Fobeis  duadridentata Broch 1909 b. 
Tetrapoma quadridentatum Kramp 1911. 
A few hydrothecæ on Halecium muricatum from Godthaab 
Fjord, Stat. 52. — Recorded by Levinsen from Frederikshaab 
and Egedésminde, by Kramp from Danmarks Havn at North-East 
Greenland. — An exclusively aretic species, known from Green- 
land, Spitzbergen and the Russian—Siberian Polar Sea. 
Sertularella tricuspidata (Alder) Hincks. 
Sertularia  tricuspidata Alder 1856, 
Sertularella — Hineks 1868. 
— — — 1874. 
— — Levinsen 1892. 
— — Jiderholm 1909. 
— Kramp 1911. 
Taken at several stations from Godthaab to Disco, but nowhere 
