Tab. XIV, Fig. 16. 
MAID, XV, die, 1, 
2. 
3. 
a, det Sted paa den indre Rand, hvor 
den membrangse Skilleveeg feester sig. 
Ryggens Hudskelet af Astropecten Andro- 
meda, præpareret og forstørret. 
Solaster glacialis, naturlig Størrelse. 
Asterina tumida, do. 
Asterina tumida, varietas 
naturlig Storrelse. 
tuberculata, 
— 4,5. Tylaster Willei, naturlig Størrelse. 
— 6. Pentagonaster hispidus, 
— 7, 8. Hymenaster pellucidus, 
do. 
do. 
TE XGNY, 
Pl. XV, 
fig. 
fig. 
16. 
a, The point on the innner margin, where 
the membranous septum is secured. 
Abactinal dermal skeleton of Astropecten 
Andromeda; dissected and magnified. 
1. Solaster glacialis; natural size. 
5 
2. Asterina tumida; 
do. 
do. varietas tuberculata; nat- 
ural size. 
— 4, 5. Tylaster Willei; natural size. 
6. 
Pentagonaster hispidus; natural size. 
— 7, 8. Hymenaster pellucidus; do. 
