stendig Art, og forsaavidt har den sin store Interesse. 
Sars fandt 1 Exemplar i Vestfinmarken (Øxfjord) paa 100 
—150, senere fandt han den igjen ved Christiansund paa 
Lerbund paa 40—70 Favne. 
Vor Varietet fandtes paa Fxpeditionen paa følgende 
Stationer. 
Station 10, nogle Exemplarer. Stat. 79, et Par Ex- 
emplarer. Stat. 92, I Exemplar. Stat. 261, 2 Exempla- 
rer. Stat. 262, I Exemplar. Stat. 290, et Exemplar. 
et sp. 
Bathybiaster pallidus, n. 2. 
Tab. XIV, Fig. 1—15. 
1877. Astropecten pallidus, Danielssen & Koren. Nyt Ma- 
gazin for Naturvidenskaberne, 23 B. 3 Hette, 
pag. 62, Tab. 3, fig. 1—7. 
5 temmelig lange, tilspidsede Arme. Forholdet imel- 
lem den lille og store Radius er paa mindre Exemplarer 
af 90—100”” Diameter som 1:4; paa større Exemplarer 
af 180”” Diameter som 1:4%/1; paa de største Exemplarer 
af 270”” Diameter som 1: 54/;.  Rygfladen er kun lidet 
hvælvet, næsten plan paa Armene og overalt tæt besat 
med Paxiller, der ere mere eller mindre runde og paa 
deres øverste Del forsynede, alt efter deres Størrelse, med 
en Samling fra 4—16 større eller mindre, runde Korn, 
der hyppigt danne en Roset bestaaende af et Korn i Mid- 
ten og 5—6 omkring dette, Fig. 1—3. 
Madreporpladen staar nærmere Skivens Rand end 
dens Centrum og har paa de største Exemplarer en gra- 
nuleret, kun lidet hvælvet Overflade, der paa mindre Ex- 
emplarer er mæandrisk furet og mere hvælvet. 
Paa Armene er Paxillarfeltet paa et Exemplar af 
170”” Diameter 15”” bredt ved Armens bredeste Del, og 
paa Midten af Armen er det 8”” bredt. Paa det største 
Exemplar — 270”” — er Paxillarfeltet ved Armens Grund 
247” bredt, imedens det paa dens Midte er 10”” bredt. 
Bugfladen er plan med en meget bred Ambulacral- 
fure, der har to Rækker tykke, konisk tilspidsede Fødder, 
og hvis Rande have et sagtakket Udseende, som frem- 
kommer derved, at Adambulacralpladernes undre Flade 
danner en Vinkel, hvorpaa de imod Furen vendende Pigge, 
af hvilke der er 7, staa i en Trekant, saaledes nemlig, at 
: Den norske Nordhavsexpedition. Danielssen og Koren. Asteroidea 
89 
an independent species, and it is in this, that its chief in 
terest lies. Sars found one specimen in West Finmark 
(Oxfjord), at a depth of 100—150 fathoms. Subsequently, 
he met with it again, at Christiansund, on a clay bottom 
at a depth of 40—70 fathoms. 
During the expedition, our variety was found at the 
following stations: 
Station No. 10. <A few specimens. 
— , 79. A couple of specimens. 
— » 92. One specimen. 
— » 261. Two specimens. 
—- » 262. One specimen. 
— s 290. One specimen. 
Bathybiaster pallidus, n. 2. et sp. 
Pl XIV, fies, 115. 
1877. Astropecten pallidus, Danielssen & Koren. Nyt Ma- 
gaz. for Naturvidensk. 23 B. 3 Hefte, pag. 62, 
Tab. 3, fig. 1—7. 
5 rather large, acuminated rays. In small specimens 
of 90 to 100”” in diameter, the proportion between the 
disk radius and the brachial radius is, as 1:4; in larger 
specimens with a diameter of 180””, the proportion is, as 
1:4%/4; and, in the largest specimens, having a diameter 
of 270"", the proportion is, as 1:5*/;. The abactinal sur- 
face, is almost flat upon the rays, and only slightly arched 
upon the disk, and, it is, everywhere, beset closely, with 
more or less round paxillæ, whose superior extremity is 
furnished, with 4 to 16 larger or smaller round grains, 
according to size. These grains frequently form a rosette, 
consisting of a central grain, having 5 to 6 other grains 
disposed around it (fig. 1—3). 
The madreporite is situated nearer to the margin 
than to the centre of the disk; and in the largest spec- 
imens, the superior surface is granulated, and only slightly 
convex; but in smaller specimens, it is more convex, and 
traversed by meandering furrows. 
In a specimen 170" in diameter, the paxillar area 
‘of the rays is 15”” broad at the broadest part of the ray, 
In 
the largest specimen 270”” in diameter, the paxillar area 
fo) , 
at the origin of the ray is 24”” broad, whilst, in the middle 
of the ray, it is 10”” broad. 
The actinal surface is flat, and has a very wide am- 
2) d 
bulacral furrow, furnished with two series of thick, coni- 
3 ? 
whilst the breadth is 8”” at the middle of the ray. 
cally acuminated suckers, and the furrow margins have a 
serrated appearance. This appearance is produced, by the 
inferior surface of the adambulacral plates forming an 
angle, on which the spines radiating towards the furrow 
12 
