mindre Masker og frembringe i det Hele et kompaktere 
Netveerk. 
Rundt Analaabningen sees 5 ovale Kalkstykker. 
Buefladens Kalkplader ere aflange, næsten kileformige 
og ligge i temmelig regelmæssige Rækker, saaledes at Side- 
randene ere skilte fra hverandre, imedens Enderne ere tag- 
lagte, Fig. 14, a; de aftage i Størrelse henimod Mundvin- 
kelen, hvor de ogsaa ligge noget længere fra hverandre, 
Fig. 14, b. De Plader derimod, som stode til Adambula- 
cralpladerne, ere mer eller mindre trekantede og noget 
kortere end de, som findes paa Midten af Interbrachial- 
rummet, og som forene sig med Kalkstykkerne i det næsten 
helt forkalkede Septum. 
Inderst i Interbrachialrummet sees Odontophoren, der 
er temmelig massiv og har to stærke Sideapophyser; dens 
forreste Rand er bred og har paa Midten en lidt afrundet 
Fremstaaenhed, dens bagerste Del er smal og afrundet, 
Fig. 14. 
De dorsale Randplader ere ligeledes aflange og stærkt 
hvælvede paa begge Flader, dog mest paa den indre; de 
ere størst i Midten af Interbrachiet, hvor de ogsaa staa 
noget længere fra hverandre end ud imod Armenes Ende, 
Fig. 14, d. 
De ventrale Randplader ere ligeledes aflange, men 
mere fladtrykte, Fig. 14, e, og bære paa deres ydre Rand 
3—6 samlede Pigge; ogsaa disse Randplader ere størst i 
Midten af Randen og aftage i Størrelse, alt eftersom de 
nærme sig Armens Spids, hvor de støde umiddelbart til 
Adambulacralpladerne. Det er disse Plader, som danne 
Søstjernens egentlige Rand. 
Ambulacralpladerne ere korte og temmelig brede. 
Adambulacralpladerne ere store, massive og bære paa 
deres underste, afrundede Rand i Regelen 5 Pigge, hvoraf 
de 2 have en horizontal Stilling indad mod Bugfuren og 
ere de største; de øvrige 3 sidde perpendikulært ved Siden 
af hverandre. Paa enkelte Adambulacralplader findes ogsaa 
6 Pigge, hvoraf de 4 da sidde udenfor Furen. 
Farven. 
Rosenrød pna Ryggen, gulrød paa Bugen. 
Findested. 
Station 10, et Exemplar. 
Slegtskarakter. 
Legemet 5-straalet med en flad Bug og kun lidet hvæl- 
vet Ryg. Subcentral Anus. Saavel Ryg som Bug over- 
alt beklædt med fine, isolerede Pigge. Randen skarp, dan- 
net alene af de ventrale Randplader, der bære Pigge. 
po 
surface. 
frequently lie imbricate than on the disk, they also form 
smaller meshes, and altogether, produce a more compact re- 
ticulation. 
Around the anal aperture, 5 oval calcareous plates 
are observed. 
The calcareous plates of the actinal surface are ob- 
long, and cuneated; and are arranged in rather regular 
series in such manner, that the lateral margins are separ- 
ated from each other, whilst the extremities le imbricate 
(fig. 14, a). They diminish in size as they approach the 
oral angle, in which situation they are also placed more 
apart from each other (fig. 14, 0). On the other hand, 
the plates abutting upon the adambulaeral plates, are more 
or less triangular, and are somewhat shorter than those 
found in the middle of the interbrachial space and which 
unite themselves to the calcareous ossicles im the almost 
entirely calcified septum. . 
The odontophore is found at the inmost point of the 
interbrachial space. It is rather massive, and has two 
strong lateral apophyses. Its anterior margin is broad, 
and has a slightly rounded protuberance in the middle, 
whilst the posterior part is narrow and rounded (fig. 14). 
The |dorso-marginal plates are also oblong, and strongly 
arcuate on both surfaces, but most of all upon the inner 
They are largest in the middle of the interbrach- 
ial area, and they also, here, stand more apart from each 
other, than is the case towards the distal extremity of the 
rays (fig. 14, d). 
The ventro-marginal plates, are likewise, also oblong, 
but more flattened (fig. 14, e), and carry on their exterior 
margin 3—6 congregated spines. These plates also, are 
largest in the mesial part.of the margin, and diminish in 
size according as they approach to the distal extremity of 
the rays, where they butt immediately to the adambulacral 
plates. It is these plates-which form the real margin. of 
the starfish. 
The 
The adambulacral plates are large and massive, and 
they usually carry 5 spines on their inferior rounded mar- 
gin, of these, two le horizontally, m towards the ventral 
furrow, and are the largest, whilst the remaining 3 spines 
stand vertically alongside of each other. On some adam- 
bulacral plates, 6 spines are also found, in which case, 4 
ambulacral plates are short and rather broad. 
of the spines are situated outside the furrow. 
Colour. 
The abactinal surface is rose-red, whilst the actinal 
surface is orange. 
Habitat. 
Station No. 10. One specimen. 
Generic Character. 
The body is 5-rayed, and has a flat actinal surface. 
The abactinal surface is only slightly arcuate. 
is submesial. 
The anus 
Both the abactinal and actinal surfaces are 
everywhere clad with slender isolated spines. The margin 
