13 



stilling eg bygning peger mod næit slegtskab. Ældre 

 zoocier viser tildels temmelig stor lighed med zoocierne hos 

 Smittia refiridafa. Da jeg for tiden ikke kan afgjore. om 

 Stimpson og Sars's arter er identiske, har jeg (ij)t'ort 8nrs's 

 navn palmata. 



I sin beskrivelse gjorde M. Sårs opmerksom paa de 

 bøielige ror af kitinagtig beskaffenhed, som var f;estede til 

 zoariet. 



Smitt ('24, IV, p. bO). paapegede, at disse ror eller 

 rodtraade (tubular fibres) udgik fra selve zoocierne og at 

 de nærmede sig hinanden og tilslut voksede sammen til et 

 knippe mod koloniens pi'oxiniale ende. Ved hjelp af dette 

 knippe var kolonierne fæstede til fremmede legemer paa 

 bunden, saasom ormror og lignende. Vigelius (31, p. IG) 

 skriver: ,.They (the branches of the colony) are connected 

 by numerous tubular fibres, originating on both sides of 

 the zoarium from membranous rather pear-shaped enve- 

 lopes, which cover certain zooecia (fig. 2)''. Disse tuber 

 danner merkelig nok et slags forlængelse nedad af zoocierne, 

 og deres betydning for koloniens liv, maa udentvivl være 

 at fungere som et støtteapparat, som holder det skjore zoa- 

 rium sammen, selv om det brækkes af paa forskjellige 

 steder. 



Smittia reticulata, Mac (4ill. 



EschareUa legpniiVi, Smitt (24, l\ ). p. 10. 81. tab. 24, 



fig. 47—52. 

 Switfia reticulata. Hincks (8), p. 346, tab. 48, i>. 1—5. 



Pindested. St. 290. 



Arten er funden i Karahavet (Levinsen), ved Novaja 

 Scmlja (Smitt), Jan Mayen (Loi^enz) og opføres ogsaa for 

 Gronland. Men den er ingen arkticus i streng forstand, 

 den forekommer saaledes ved Englands og Frankrigs kyster, 

 i Adriaterhavet, ja endog ved Nyzealand og FalkLinds- 

 øerne. 



Smittia trispinosa, .lohnst. 



Tab. I, fig. <l. 



Escharella jacotinl. Smitt (24, TV), p. 11. 86. tab. 24. fig. 



53—57. 

 Smittia trispinosa, Hincks (8), p. 353, tab. 49, fig. 1 — 8. 

 „ „ var. arborea, Levinsen (15), p. 16, tali. 



27, fig. 7, 8. 



Findesteder. St. 273, 326. 357. 



Paa de nævnte steder forekom kun den af Levinsen 

 opstillede eiendommelige form arborea. Denne varietet er 

 tageu foruden af Dimphna- og Nordhavsekspeditionen ogsaa 

 af Kiickenthal og Walter ved Spitsbergen (Bidenkap). Jeg 

 tog dell vinteren 1899 i Porsangerfjorden, hvormed den 



cularia indicate a close relationship. Older zoæcia some- 

 times bear considerable resemblance to the zoæcia in 

 Smittia reticulata. As I cannot at present decide whether 

 Stimpson's and Sarss species are identical, I have put down 

 Sars's name, ludmata. 



M. Sårs, in his dcscription. drew attention to the 

 flexible tubes of a chitinons consistency, that wero attached 

 to the zoarium. 



Smitt (24, W. p. 80) pointed out that these tubes 

 or root-fibres (tubular fibres) issued from the zoæcia them- 

 selves, and that they approached one another, and at last 

 grew together into a bunch towards the proximal end of 

 the colony. By raeans of this bunch, the colonies were 

 attached to foreign liodies at the bottom, such as worm- 

 casts. and the like. Vigelius (31, p. 16) writes: "They 

 [the branches of the colony] are connected by numerous 

 tubular fibres, originating on both sides of the zoarium 

 from membranous, rather pear-shaped envelopes. which 

 cover certain zoæcia (fig. 2)". These tubes, strange to say, 

 form a kind of prolongation downwards of the zoæcia, aud 

 their significance to the existence of the colony must with- 

 out doubt be to act as a supi)ort to keep the brittle zoa- 

 rium together, t'ven if it be broken in several places. 



Smittia reticulata, MacGill. 



Escharrlla legentilii. Smitt (24. IV). pp. 10. 81: Pl. XXIV, 



figs. 47 — 52. 

 Smittia reticulata, Hincks (8), p. 346: Pl. XLVIII, figs. 



Occurrence Station 290. 



The species has been found in the Kara Sea (Le- 

 vinsen), at Novaja Semlja (Smitt), .lan Mayen (Lorenz), 

 aud is also recorded from Greenland. But it is not strictly 

 speaking an arctic species, as it occurs on the coasts of 

 England and Fi-ance, in the Adriatic, and even oft" New 

 Zealand and the Falkland Isles. 



Smittia trispinosa. Johnst. 

 i'i. I, iig. '.). 



EscharelJa jacotini, Smitt (24. IV), pp. 11. 86; Pl. XXIV, 



figs. 53 — 57. 

 Siiiiftiii frisjiiuosa, Hincks (8). p. 353; Pl. XLIX, figs. 



1 — 8. 

 „ „ var. arborea, Levinsen (15), p. KJ; Pl. 



XXVII, figs. V, 8. 



Occurrence. St. 273, 326, 357. 



Levinsen's peculiar form arborea \vas the only one 

 that occurred at the above places. This variety has not 

 only been found by the Dijmphna aud North Atlantic Ex- 

 peditions, but also by Kiickenthal and Walter at Spits- 

 bergen (Bidenkap). I found it in the early part of 1899 



