KUNGL. SV. VET. AKADEMIEKS HANDLINGAR. BAND 60. N!0 9. 9 



(Sandebergs Exp.); The Banks of Newfoundland, 45° 53' N., 51°56'W., 50 fathoms, 

 stony bottom with shells, 1G /s 1871 (Dr. J. Lindahl). The specimens from Lum- 

 bowski are luxuriant and covered with other hydroids such as Calycella syringa, 

 Gonoihyraea Lovenii, Serlularella tricuspidata. 



Sertnlaria tenera G. O. Särs. 



This species is represented in several young colonies from different localities 

 and a single large specimen from Matotschkin Sharr. The branches of this specimen 

 are spirally and loosely arranged in the distal portion of the stem with approach 

 to unilateral arrangement of the hydrothecae and consequently belongs to forma 

 spitzbergensis. 



Localities: Novaja Semlja, Matotschkin Sharr, at a depth of 2 — 5 fathoms, 

 clay, 12 /- 1875 (Sw. Nov. Semlja Exp.); d:o, Jugor Sharr, at 10 — 14 fathoms, stony 

 bottom with shells, 31 /7 1875 some young specimens and fragments together with 

 Selaginopsis mirabilis, Campanularia verticillata , Seriularella tricuspidata and Bryozoa 

 (Sw. Nov. Semlja Exp.); d:o, Kostin Sharr, at a depth of 20—30 fathoms, clay, 

 21 A 1875 (Sw. Nov. Semlja Exp.); Kära Sea, 71° 4' N., 63° 5' E., 90 "fathoms, clay, 

 4 / 8 1875 (Sw. Nov. Semlja Exp.); Beeren Island, 15-40 fathoms, Oct. 1868 (Sw. 

 Spitzb. Exp.). 



Sertularella tricuspidata (Ålder). 



Localities: Novaja Semlja, Jugor Sharr, at a depth of 10 — 14 fathoms, stones 

 and shells, 31 /t 1875 (Sw. Nov. Semlja Exp.); d:o, Matotschkin Sharr, at Tschira- 

 kina, 10—15 fathoms, loam, 13 /o 1876 (Nordenskiölds Exp.); Kära Sea, 70° 20' N., 

 66° E., sandy bottom, l2 /s 1876 (Nordenskiölds Exp.); Murman Sea, Lumbowski, '% 

 1877 and Waideguba 10 /s 1877 (Sandebergs Exp.); Spitzbergen, Norwegian Islands, 

 18—25 fathoms, härd bottom, 19 / 8 1872 (Sw. Spitzb, Exp. 1872—73); d:o, Lovens 

 Mountain, 36 fathoms, stones and clay, ll /o 1868 (Sw. Spitzb. Exp.); Greenland, 

 Disco, Nordfjord, 27 fathoms, härd, grey clay, in /- 1871 (Dr. J. Lindahl); d:o, 66° 

 45' N., 59° 30' W., 35 fathoms, shells, ?8 / 6 1883 (Sophia-Exp.). 



Sertularella gigantea Meresch. 



The colonies large and robust, very irregularly branched. Hydrothecae quite 

 smooth, with rather long adcauline free wall. On some specimens almost all the 

 hydrothecae show renovation, often 3 — 4 times. 



Localities: Greenland, Sukkertoppen, 15 — 20 fathoms, stones and Bryozoa, 23 /<i 

 1870 (Sw. Greenland Exp.) ; Novaja Semlja, Matotschkin Sharr, near Tschirakina, 

 10—15 fathoms, loam, 12 /o 1876 (Nordenskiölds Exp.). 



K. Sv. Vet. Akad. Handl. Band 60. N:o 9. 2 



