melig langt fra hverandre, 26 i Antal, og ere ved deres 
tykke Grunddel krandsformig omgivne af korsformede Pedi- 
cellarier, der strække sig langt op over Piggene, Fig. 1. 
Forøvrigt er Armenes Ryg besat med ligeformede Pedi- 
cellarier, der ere spredte over den hele Flade og imellem 
hvilke sees Tentakelrør. 
Bugen er flad; Ambulacralfuren bred, forsynet med 2 
regelmæssige Længderækker stærke Papiller, hvoraf de i 
den yderste Række ere lengst, Tab. III, Fig. 8. 
Strax udenfor denne sees en Række lange, stærke, 
langt fra hverandre staaende Pigge, 32 1 Antal, hvis Grund- 
dels ydre Halvpart er tæt omsluttet af korsformede Pedi- 
cellarier, Fig. 8, a. Det smale Belte, som findes mellem 
den ydre Række Furepapiller og de lange Pigge, er kun 
yderst sparsomt optaget af ligeformede Pedicellarier. 
Langs Ambulacralfuren er der ved Grunden af de 
indre Papiller store, langstilkede, ligeformede Pedicellarier, 
af hvilke der som oftest sidder en enkelt ved hver Papille. 
Saavel de korsdannede som de lige Pedicellarier have 
stor Lighed med dem, der findes hos Asterias stellionura, 
men afvige dog i enkelte Punkter; dette gjælder kun de 
Pedicellarier, som findes paa Rygsiden. 
De korsdannede ere meget mindre; Kjæverne ere kortere, 
ikke saa stærkt hvælvede til Siderne, og imellem de forreste 2 
store Tænder er der kun en liden Tand (hos Ast. stellio- 
nura 3—4), ligesom der næsten ingen Afstand findes imel- 
lem de to store Fortænder og Sidetænderne, der ere om- 
trent lige lange, hvilket ikke er Tilfældet hos Aster. stelli- 
onura. 
Pigge paa Randen af Armene og Bugfladen, ere derimod 
fuldkommen lig dem hos Ast. stellionura. 
De korsformede Pedicellarier, der omgive de store 
De ligeformede Pedicellarier, der findes paa Ryggen, 
have paa Kjævernes Forende to smaa Tænder, ligesom deres 
indre Flade er besat med fine Tænder, Tab. IT, Fig. 3. 4. 
Hos Ast. stelliomura have vi ikke kunnet opdage de to 
smaa Fortænder; forresten kunne vi henvise til Tegningerne. 
Paa Skivens 
Ryg dannes det af uregelmæssigt formede Kalkstykker, der 
dels ligge paa hverandre, dels støde umiddelbart til hver- 
andre og danne kun smaa Mellemrum for Gjennemgang af 
Tentakelrør, Tab. IT, Fie. 2, a. 
Paa Armene have de Kalkstykker, der bære den mid- 
terste Række Pigge, en oval Form og ligge taglagte paa 
Hudskelettet er meget stærkt bygget. 
hverandre i en enkelt Rad, og til dem støde de paatvers- 
løbende Kalkbjelker, der ere sammensatte af langstrakte, 
smale Kalkstykker, Tab. IT, Fig. 2, 6, Tab. ITI, Fig. 9, a. 
Her er et udpræget Kalknet, bestaaende af større og mindre 
Masker, hvoraf mange af de til Siderne ere saagodtsom 
* Se Ma», IY, 
They are 26 in number and are situated at a considerable 
interval from each other, and at the thick basal part, are 
environed by cruciform pedicellariæ, projecting far above 
the spines (PI. IT, Fig. 1). Otherwise, the abactinal surface 
of the rays is beset with rectiform pedicellariæ spread over 
the entire surface, and with tentacular tubes appearing be- 
tween them. 
The ventral surface is flat; the ambulacral furrow 
broad, and supplied with two longitudinal regularly formed 
series of strong papilla, of which, the longest ones are found 
in the outer series (Pl. ITI, Fig. 8). 
Immediately outside this series, there is a series of 
strong spines, 32 in number, and placed at consider- 
intervals from each other; their basal exterior half is 
closely encompassed by cruciform pedicellariz (Pl. III, Fig. 
8, a). The the exterior 
series of furrow-papillæ and the long spies is only ex- 
long 
able 
narrow border formed between 
tremely sparingly beset with rectiform pedicellariæ. 
Along the ambulacral furrow, at the base of the internal 
papillæ, large, long-pedunculated, rectiform pedicellariz are 
visible, of which, most frequently, a single one is seated 
beside each papilla. 
Both the cruciform pedicellariæ, and the rectiform 
pedicellariæ, have much similarity with those found in Aste- 
rias stellionura, yet differ in some points; that, however, 
only refers to the pedicellariæ found on the abactinal surface. 
The cruciform pedicellariz are much smaller; the jaws 
are shorter, and not so much arched laterally; and between 
the two large front teeth, there is only a small tooth; (Ast. 
stellionura has 3—4) there is almost no interspace between 
the two large front teeth and the lateral teeth, which are 
about uniform in length; and this does not occur in Ast. 
stellionura. The cruciform pedicellariz which environ the 
large spines of the margin of the rays and the ventral 
surface, are, on the other hand, exactly similar to those 
of Ast. stellionwra. 
The rectiform pedicellariæ of the abactinal surface, 
have two small teeth in the front of the jaws, whilst the 
interior margin is occupied by minute teeth, (Pl. IL, figs. 
3, 4). We have not been able to discover the two small 
front teeth in Ast. stellionura; as for the rest, the drawings 
speak for themselves. 
The dermal skeleton is very strongly constructed. In 
the abactinal disk, it is formed of irregularly shaped cal- 
careous ossicles, partly covering each other, and partly 
abutting upon each other, leaving only small interspaces 
for the passage of tentacular tubes, (Pl. II, Fig. 2, a). 
In the rays, the ossicles which carry the mesial series 
of spines have an ovate-form, and are placed in a single 
imbricate row, upon which the transverse calcareous rods 
abut; the calcareous rods are composed of elongate, narrow 
Oss@ies (ING IL Ide 2 6 Jel 1006 1988, op Moer 1, 
in this situation, a marked calcareous reticulation, consisting 
of larger and smaller meshes, of which, many of the lateral 
1 vide) Bl EV. 
