dens øverste er næsten lige og paa Midten forsynet med en 
pyramideformig Kam (crista), Fig. 6,4, der seet en face 
ligner en liden Tap, Fig. 5,a@; paa hver Side af denne 
ke) ? fo) 3 2 
Kam sees en liden Grube, Fig. 6, b, som tjener til Inser- 
? fo) o 
tion for Muskler. 
Kjæverne ere langstrakte og smale, paa hele deres ydre 
Flade gjennembrudte og have ned imod deres Grunddel 
indad et halvmaaneformigt Indsnit, Fig. 5, b. 6, c, ligesom 
deres indre Rande ere fint sagtakkede, Fig. 6, d. 
Den anden Form af de lige Pedicellarier, som alene 
findes paa Skiven, have en særegen Form og ere meget 
mindre end de øvrige. Basaldelen danner en Pyramide 
med en bred, lige Grunddel og stærkt skraanende Sidefla- 
der, der afgive Leddeflader for Kjæverne, Fig. 7,a. Disse 
ere krumbøiede, bredere foroven, hvor der fra den afrun- 
dede Ende fremrager mange Kalkspidse, der ere stillede 
saaledes, at de fra den ene Kjæve gribe ind i den anden 
Kjæves Kalkspidser. Det er kun den øverste Halvdel af 
Kjæverne, der støder mod hinanden; paa den nederste 
Halvdel rager enkelte Kalkspidser frem, men her mødes 
ikke Randene, tvertimod er der et stort aabent Rum, naar 
Kjæverne ere sluttede, Fig. 7,6. Saavel Kjæverne som Ba- 
saldelen er tæt gjennembrudt, og da Aabningerne paa Kjæ- 
verne ere temmelig regelmæssigt stillede, fremkommer der- 
ved et gitret Udseende, Fig. 7, b. 
Bugfuren er, som almindelig hos Slægten Asterias, op- 
taget af 4 Rækker Fodder, og langs dens Rande sees i 
Regelen 3 Rækker temmelig lange, noget fladtrykte Papil- 
ler, hvoraf de, der staa inderst og rage ind i Furen, ere 
de korteste; de i den yderste Række ere længst. Paa store, 
gamle Individer er der flere Furepapiller, af hvilke kun de, 
der staa inderst, danne en regelmæssig Række; de øvrige 
staa temmelig uregelmæssigt og danne tildels smaa Grup- 
per paa 4—5, der udgaa fra hver Adambulacralplade. Ved 
Grunden af de inderste Furepapiller sees isolerede, langt 
fra hinanden staaende, lige Pedicellarier, der sidde paa en 
lang Stilk. Disse Pedicellarier findes væsentligst paa den 
midterste Del af Ambulacralfuren.  Lidt udenfor den ydre 
Række Furepapiller sees to Rækker Pigge, som ere meget 
lange, noget fladtrykte, staa temmelig regelmæssige, Fig. 2, 
og som aftage betydeligt i Størrelse mod Armspidsen. Paa 
store Exemplarer føier der sig ofte flere Pigge til disse 
Rækker, hvorved de blive mere uregelmæssige. 
Ryggens Hudskelet bestaar af smaa, smale, aflange 
Kalkstykker, som, idet de lægge sig paa hverandre, danne 
kortere eller længere Kalkbjelker, der forbindes med hin- 
anden og danner derved et meget aabent Net med store 
Masker, hvori sees mange Tentakelporer, Fig. 8,a. Dette 
Kalknet ophører paa Armenes yderste Fjerdedel, hvor der 
kun findes spredte Kalkkorn i Huden. 
Paa Skiven er et uregelmæssigt formet Centralstykke, 
Fig. 8,0, hvortil støder straaleformigt 5 aflange Kalkstyk- 
tion is small, with a very convex inferior margin. The super- 
ior margin is almost straight, and in its mesial part, is fur- 
nished with a pyramidal ridge, (crista) (fig. 6,4) which, viewed 
from the front, resembles a small, conical protuberance (fig. 
5, a). On each lateral surface of this ridge, there occurs a 
small cavity, (fig. 6, b) serving for muscular insertions. 
The jaws are elongate and narrow, and have the en- 
tire exterior surface perforated; towards the internal basal 
part, they have a crescent shaped cavity, (fig. 5, b, 60) whilst, 
also, the interior margin is minutely serrated (fig. 6, d). 
The other form of rectiform pedicellariz is only found 
upon the disk; it is peculiar in form, and much smaller 
than the others. The basal part forms a pyramid, having 
a broad straight base, with strongly sloping lateral surfaces, 
which furnish articulatory surfaces for the jaws (fig. 7, a). 
These are bent; broadest superiorly, where there projects 
from the rounded extremity, numerous calcareous points, so 
situated, that those of one jaw interlace with those of the 
opposite jaw. It is only the superior half of the jaws which 
close together on each other. On the inferior half, a few 
calcareous points project, but in this situation, the margins 
do not close on each other; on the contrary, a large open 
interspace remains when the jaws are closed (fig. 7, 0). 
Both, the jaws and their basal region, are closely perfor- 
ated, and, as the perforations of the jaws are rather regul- 
arly placed, a grated appearance is produced (fig 7, b). 
The ventral furrow, as is the case, generally, in the 
genus Asterias, is occupied by 4 series of suckers, and 
along its margins, there is, as a rule, visible, 3 series of 
rather long, somewhat flattened papillæ, of which, those, 
situated innermost and projecting into the furrow are the 
shortest: those in the outermost series are the longest. In 
large aged specimens, the furrow papille are more numerous, 
whilst, only those situated innermost, form a regular series; 
the others are placed, partly irregularly, and form, partly, 
small groups of 4—5 springing from each adambulacral plate. 
At the base of the innermost furrow-papillæ, isolated recti- 
form pedicellariæ are seen, seated on long peduncles, and 
situated at long intervals from each other. These pedicel- 
lariæ, are principally found onthe mesial portion of the am- 
bulacral furrow. Slightly beyond the exterior series of fur- 
row-papillæ, 2 series of spines are seen; these are very long, 
somewhat flattened, and rather regularly placed (fig. 2); 
towards the brachial extremity, the size diminishes consid- 
erably. In large specimens, several spines often unite to 
these series, producing in them, still greater irregularity. 
The abactinal dermal skeleton consists, of small, nar- 
row, oblong calcareous ossicles, which, by disposing them 
selves upon each other, form shorter or longer, calcareous 
rods, united together, and thus form a very open reticul- 
ation, with large meshes, in which many tentacular pores 
appear, (fig. 8, a). This calcareous reticulation ceases on 
the distal brachial quarter-length, im which situation, only 
scattered calcareous grains are found in the integument. 
On the disk, there is found an irregular shaped mesial 
ossicle, (fig. 8, 0) upon which 5 oblong calcareous ossicles 
GY 
i 
