17 



som tåge deres Begyndelse et Stykke ovenfor Basaldelen. 

 Grenene staa temmelig langt fra hverandre, ere tykke med 

 afstumpede Ender og rigl besatte med Polyper, der tildels 

 gruppere sig, hvorved Smaagrene dannes. Polyperne 

 bægerformede, 8""" lange, hvoraf Tentakleme udgjør omtrent 

 en Trediedel. Stammen. Grene og Polyper ere rige paa 

 Kalkspikler. Spiklerne optræde paa Basaldelen, Stammen, 

 Grenene og tildels paa Polypernes Bagkrop vesentlig under 

 Form af Dobbeltstjerner og paa Forkroppen, Spindler. 

 Artens Form varierer temmelig betydeligt, men Spiklernes 

 Anordning og Form overalt den samme. Svrelget forsynet 

 med S enkelte Længderækker Spikler. Farven væsentlig 

 laxerød. 



Væringia pygmæa n. sp. 



Tab. IX, Fig. 41—HO. 



Zoanthodemet er indtil 35""" hoit. Stammen er rund, 

 riflet, temmelig fast og ved Grunden 35™'" i Omfang, men 

 aftager lidt i Tykkelse op imod den afrundede Top, der 

 er tæt besat med Polyper. Basaldelen er noget udvidet. 

 Paa et Par meget smaa Exemplarer har Basaldelen mem- 

 branost omspimdet en tynd Gren af Hornera. samt et 

 Annelideror. Fra Basaldelen og til Toppen er Stammen 

 omgiven af Grene, som ere tykke, furede og mere eller mindre 

 lange, saa at de længste, der sidde omtrent midt paa Stammen. 

 ere indtil 20""". imedens andre ere kun halvt saa lange. 

 De ere i Reglen nogne ved Udspringet og i nogle Milli- 

 meters Udstrækning, men forovrigt ere de rigt besatte 

 med Polyper. som danne tætte Grupper, der samle sig i 

 en bred Stilk, som gaar over i Grenen. Disse Smaagrene 

 med Polypgrupper omgive Grenen saa tæt. at denne ganske 

 skjules af dem. Fig. 41. 



Polyperne ere i udstrakt Tilstand omtrent 10""" lange, 

 næsten cylindriske, dog bredere paa Bagkroppen, der er 

 temmelig lang og forsynet med 8 Længderækker paa tvers- 

 liggende Spikler. hvilke gaa over paa Forkroppen, men 

 blive her mere fremspringende, idet Spiklerne ligge paa- 

 langs, Fig. 42. Tentakleme ere 3 — 4""" lange, og saavel 

 Tentakelstammen som Pinnulerne ere paa deres aborale 

 Flade bepantsrede med Spikler, Fig. 43. 



Hele Zoanthodemet er rigt paa Spikler, som optræde 

 under forskjellige Former paa de forskjellige Steder. — 

 Paa Basaldelen ere sammensatte Stjerner almindeligst, 



Den norske Nordhavsexpedition : 1>. ('. Danielssen: AlcyonMa. 



cylindrical, and longitudinally grooved, pretty hard. and 

 furnished with branches which begin to spring out a short 

 distance above the basal-part. The branches are placed 

 pretty tar apart from each other, and are thick, with blunted 

 extremities; they are richly beset with polyps whieh. partly, 

 group themselves together and. in tliat manner, form the 

 branchlets. The polyps are chalice-formed, and measure 8""" 

 in length, of which the tentacles compose about a third 

 part. The stem, branches, and polyps, are rich in cal- 

 careous spicules. The spicules appear upon the basal part, 

 the stem, branches and, partly. upon the posterior body 

 of the polyps, principallv. in the form of the bistellate 

 and on the anterior body as fusees. The form of the 

 species varies pretty considerably, but the spicular arrange- 

 ment and form is, everywhere, the same. The gullet is 

 furnished with 8 single, longitudinal, series of spicules. 

 The colour is. principallv, salmon-red. 



Væringia pygmæa n. sp. 



Pl. IX. Figs. 41—00. 



The Zoanthodem measures up to 35""" in height. 

 The stem is cylindrical, grooved, rather finn and, at the 

 base. it measures 35'"'" in circumference, but diminishes a 

 little in thickness up towards the rounded summit, which is 

 closely beset with polyps. The basal portion is somewhat 

 expanded. In a couple of verv small speeimens, the basal 

 portion is membranaceously girded by a thin branch of 

 Hornera and, also, by an Annalid-tube. From the basal 

 portion and up to the summit, the stem is surrounded by 

 branches; these are thick. and grooved, and are more or 

 less long, so that the longest ones, which are situated about 

 the middle of the stem. measure up to about 20""", whilst 

 others are onlv half as long. As a rule, they are bare at 

 the root and for a few millimetres beyond it, but, other- 

 wise, they are richly beset with polyps. which form closely- 

 set groups that collect themselves into a broad stalk 

 produced into the branch. These branchlets with polyp- 

 groups surround the branch so closely, that it is quite 

 concealed by them (fig. 41). 



The polyps are, when in extended condition, about 

 10""" long. almost cylindrical. but broadest on the posterior 

 body; this is pretty long. and is furnished with 8 longi- 

 tudinal series of transversally-situnted spicules which are 

 produced into the anterior body but become. here. more 

 protuberant, owing to the spicules being placed longitudin- 

 ally (fig. 42). The tentacles are 3 — 4""" in length, and 

 both, the tentacular stem as well as the pinnules, are 

 sheathed with spicules on their aboral surface, (fig. 43). 



The entire Zoanthodem is rich in spicules. which 

 appear under different forms in the different situations. In 

 the basal portion, complex stellates are most frequent, whilst, 



