velse og Afbildning hos Sars. Begge disse Forfattere have 
kun været i Besiddelse af et voxent og et meget ungt Ex- 
emplar, og ligesom Undersøgelserne derved nødvendigvis 
maa være blevne mere indskrænkede, saaledes have de heller 
ikke havt Anledning til at kunne anstille Sammenligninger, 
der jo bidrage saameget til sikrere at kunne bestemme Ar- 
ten. Retten til at opføre Pedicellaster palæocrystallus som 
synonym formene vi nu at have begrundet. 
Pedicellaster typicus synes at være meget udbredt; men 
visselig maa dens egentlige Hjem være de arktiske Have. 
Den er funden ved de norske Kyster fra Sognefjorden 
til den nordlige Del af Vestfinmarken, ved den murmanske 
Kyst, ved Novaja-Semlja, ved den nordamerikanske Kyst, 
i Discovery Bugten, 819 41' N. B., 25 Favnes Dyb; ved 
Cap Frazer, 79° 44’ N. B., 80 Favne (Capt. Fielden); 
fremdeles paa den norske Nordhavs-Expedition paa de for- 
hen angivne Stationer. 
Fra Kerguelens Land har Edgar Smith! opført som 
ny Art Pedicellaster scaber, der adskilles fra Sars’s Art, 
ved at Ambulacralfuren er smalere, og at Ambulacralpig- 
Paa vore Exemplarer er Ambula- 
Exemplarer fand- 
tes 3 Rækker Furepigge paa enkelte Arme, imedens an- 
dre havde 2, og paa et Exemplar fra Sognefjorden var 
der 3 Rækker Furepigge paa et Stykke af Armen, der 
indtoges af 5 Adambulaeralplader. Efter dette ere vi til- 
bøielige til at tro, at de Karakterer, der efter Smith skal 
adskille hans Art fra Pedicellaster typicus, ikke ere kon- 
stante, og at det saaledes er en klimatisk Varietet, men 
ingen udpræget Art, han har havt for'sig. 
gene danne 3 Reekker. 
eralfuren stundom meget smal; paa 2 
Echinaster scrobiculatus, n. sp. 
Tab. VI, Fig. 10—11. Tab. VII, Fig. 12—14. 
Legemet 5-armet. Den lille Radius forholder sig til 
den store som 1:3. Skivens Diameter 4,5””. Armenes 
Længde 5,5, hele Søstjernens Diameter 15”, Fig. 10 &11. 
Ryggen er temmelig flad, stærkt retikuleret og besat 
med korte, lidt afstumpede, enkeltstaaende Pigge, Fig. 11. 
Den forholdsvis brede Skive er Pig- 
gene ere uregelmæssigt ordnede, oftest enkeltstaaende, sjeld- 
nere to sammen, og 1 enhver Maske sees saagodtsom over 
hele Skiven en dybtliggende Tentakelpore. 
kun lidet hvælvet. 
Analaabningen subcentral, omgivet af en aflang Ring 
fine Pigge, Fig. 11. 
* Philosophical Transactions of the Royal Society of London. 
Volume 168 (extra Volume 1879) pag. 271. 
40 
Both of these writers, have had in 
their posession, only one adult, and one very young specimen, 
and just as their observations must, thus, of necessity, have 
been limited, so, neither, can they have had opportunity to 
seription and illustration. 
institute comparisons, which, of course, assist so much in 
diagnosing the species with greater certainty. 
We think, we have now shown good reasons, for class- 
ifying Pedicellaster paleocrystallus, synonymous with 
Pedicellaster typicus. 
Pedicellaster typicus appears to be widely distributed, 
but its proper home must evidently be the Arctic seas. 
It is found on the Norwegian coast extending from Sogne- 
fjord to the northern part of western Finmark; on the Murman 
Coast; at Nova Zembla; on the North American coast; 
in Discovery Bay (81° 41’ N. L.) at a depth of 25 fath- 
oms; off Cape Fraser (799 44’ N. L.) at a depth of 80 
fathoms (Capt. Fielden), and further during the Norwegian 
North-Atlantic Expedition at the stations already tabulated. 
From Kerguelen’s Land, Edgar Smith! has presented 
as a new species Pedicellaster scaber, which differs from 
Sars’ species, im, that the ambulacral spines form 3 series. 
In our specimens, the ambulacral furrow is occasionally 
as 
very narrow, and on a few rays of two specimens, 3 ser- 
ies of spines were found, whilst others had 2 series. In 
one specimen from Sognefjord, 3 series of furrow-spines 
were found upon a portion of the ray which was included 
by 5 adambulacral plates. From this we incline to think, 
that'the specific features which according to Smith define 
the difference between his species and Pedicellaster typicus, 
are not constant, and, that it is thus a climatic variety, and 
not a distinct species, which he has had before him. 
Echinaster scrobiculatus, n. sp. 
Pl. VI, figs. 10, 11. Pl. VII, figs. 12—14. 
The body is 5-rayed. The disk-radius bears to the 
brachial radius, the proportion of, as 1:3. The disk’s di- 
ameter is 4.5”” and the length of the rays is 5.5””, The 
total diameter of this starfish is 15”” (PI. VI, figs. 10, 11). 
The abactinal surface is rather flat; strongly reticul- 
ated, and beset with short, somewhat blunted, solitary 
spines (Pl. VI, fig. 11). The disk is only sligthly convex, 
and is proportionally broad. The spines are arranged ir- 
regularly, and are situated singly; but occasionally, although 
rarely, two together. In each mesh of the reticulation, 
nearly over the whole of the disk, there is visible a deeply 
situated tentacular pore. 
The anal aperture is submesial, and is surrounded by 
an oblong ring of spinelets (Pl. VI, fig. 11). 
1 Philosophical Transactions of the Royal Society of London. 
Volume 168 (extra Volume 1879) pag. 271. 
N 
