Solaster glacialis, n. sp. 
Tab. VIII, Fig. 9—10. Tab. IX, Fig. 1—6. Tab. XV, Fig. 1. 
Legemet er syvarmet, kun lidet hvælvet paa Ryggen. 
Bugen flad. Forholdet imellem den lille og store Radius 
som 1:3: subcentral. —Madreporpladen 
rund, sidder imellem Armyinkelen og Anus, dog nærmere 
den første, Tab. VIII, Fig. 9. 10, Tab. XV, Fig. 1. 
Analaabningen 
Rygfladen er besat med Paxiller, der staa langt fra 
hverandre, omtrent 1””, og danne regelmæssige Længde- 
rækker paa Armene, Tab. IX, Fig. 1. 3. 
Enhver Paxille har et kort Skaft, hvis øverste Del 
ender 1 Regelen i 6 Spidser, hvoraf 5 sidde i Krands om- 
kring den 6te. 
Imellem Paxillerne er Huden nogen, og her sees Aan- 
derørene at staa enkeltvis, Tab. IX, Fig. 3, sjeldent to 
sammen og ere paa den inderste Halvdel af Armen stillede 
i Længderækker; kun paa den yderste, smale Ende af Ar- 
men findes ingen Tentakelporer. 
De ventrale Randplader ere 28, kun lidet fremtræ- 
dende og bære hver en penselformig Paxille, der hjælper 
til at danne den Paxillerække, som begrændser Armen til 
Siderne, Tab. IX, Fig. 4, a. 
Bugfladens Interbrachialrum ere besatte med enkelte 
Pigge, der staa uregelmæssige, Tab. IX, Fig. 2, a; forøv- 
rigt er Huden nøgen. 
Langs Ambulacralfuren er paa hver Side en Række 
Pigge, som udgaa fra den indre Del af Adambulacralpla- 
dens undre Rand, Tab. IX, Fig. 4, b. Fra enhver af de 
4—5 inderste Adambulacralplader udgaa 4 lange Pigge, 
der ere samlede ved Grunden, men gaa stærkt viftetormigt 
fra hverandre ud imod Bugfuren, saaledes at de to mid- 
terste ere de længste. Paa de øvrige Adambulacralplader 
er der kun 3 saadanne Pigge. Udenfor denne Række Fu- 
repigge sees Tverrækker af Kalkpigge, der tage sit Ud- 
spring fra den ydre Del af Adambulacralpladens undre 
Rand, Tab. IX, Fig. 4, c. De 3—4 af de inderste Tver- 
rækker have kun 3 Pigge, af hvilke den midterste er den 
længste, Tab. IX, Fig. 2, b; de øvrige have 4 Pigge, en 
og anden 5, Tab. IX, Fig. ?,c. 4, d. Imellem disse 
Tverrækker og Paxillerækken, der betegner Søstjernens 
Rand, er der indimod Interbrachialrummet, altsaa paa den 
indre Del af Armen, en Række enkeltstaaende Pigge. 
Mundpladerne have paa deres konvexe Siderande 6 
Pigge, paa den inderste, atrundede Rand 4 lange Tænder, og 
paa Midtpartiet 2 Rader smaa Pigge, 3—4 i hver, Tab. 
IDK, 1996, 9, Gh By Oo 
42 
Solaster glacialis, n. sp. , 
IL WAGE, fig ONO, IPL IDG, Aes, 16 PL XV, fe Nl 
The body is 7-rayed, and only slightly arched on the 
abactinal surface. The actinal surface is flat. The disk 
radius bears to the brachial radius, the proportion of, as 
1:3. The anal aperture is submesial, and the madreporite 
is circular, and situated between the brachial angle and 
the anus, but nearer to the first named (Pl. VIII, figs. 9. 
105 JO SOY, tte, i), 
The abactinal surface is beset with paxille, placed 
about 1”” trom each other; and upon the rays, these form 
regular longitudinal series (Pl. IX, figs. 1—3). 
Each paxilla has a short peduncle whose superior por- 
tion usually terminates in 6 points, 5 of which are placed 
as a wreath around the sixth, which becomes a centre. 
The integument is bare between the paxillæ; and, in 
this situation, tentacular tubes, placed singly, (Pl. IX, fig. 
On the 
interior half of the ray, they are placed in longitudinal 
series. 
3) and, but seldom, two together, are to be seen. 
It is, only, on the extremely slender tip of the 
ray that no tentacular pores are found. 
The ventro-marginal plates are 28 in number, only 
slightly protuberant, and carrying, each, a penicilliform 
paxilla, which assists in forming the paxillar series which 
borders the ray laterally (Pl. IX, fig. 4, a). 
The interbrachial space of the actinal surface is beset 
with a few spines placed irregularly (Pl. IX, fig. 2, a), but 
the integument is otherwise bare. 
Along each lateral surface of the ambulacral furrow, 
there is a series of spines proceeding from the inner por- 
tion of the adambulacral plate’s inner margin (Pl. LX, fig. 
4, b). From each of the 4—5 inmost adambulacral plates, 
there proceed 4 long spines, collected together at their 
base, but, opening out, freely, above, in a fan-shape, and 
facing outwards towards the ventral furrow, in such man- 
On the 
mainder of the adambulacral plates, there are only 3 such 
ner that the mesial spines are the longest. re- 
spines. Beyond this series of furrow spines, transverse 
series of calcareous spines appear, which have their origin 
in the exterior portion of the adambulacral plate’s inferior 
margin (Pl. IX, fig. 4,0. The 3—4 furthest inmost 
transverse series, have only 3 spines, of which, the mesial 
one is the longest (Pl. IX, fig. 2, 0). The others have 4 
spines, whilst, an occasional one has 5 spines (PI. IX, fig. 
2, c. 4, d). Between these transverse series, and the pax- 
illar series which defines the margin of the starfish, there 
extends towards the interbrachial space; consequently, on 
the inner surface of the ray, a series of spines, placed 
singly. 
The oral plates have 6 spines on their convex lateral 
margin, and 4 large teeth on their rounded inner margin; 
also, 2 series of spielets in the mesial part, containing 
3—4 spinelets in. each series (Pl. IX, fig. 2, d. 5, a). 
