24 
THE INVERTEBRATE FAUNA 
the Firth, and have always been inclined 
to regard it as a mere variety of the widely- 
distributed and polymorphic Asteriasrubens. 
At present, however, we have followed Mr 
Norman and Professor Perrier in giving it 
the rank of a separate species. Forbes 
states that it is by far commoner than A. 
rubens at the mouth of the Firth. 
ECHINASTERIDA. 
Solaster papposus (Linn.). 
S. endeca (Linn.). 
Firth of Forth (Zd. Mus.). 
Solaster papposa of Forbes. It is a common 
species in the Firth. We often got it at 
low tide, and have dredged it from shallow 
water to 14 fathoms. It attains a very 
large size, and in this respect offers a 
marked contrast to its dwarfed northern 
congeners, S. borealis and S. furcifer. 
Anstruther (J. G.); Firth of Forth (/'B.). 
This species is less common than S. pap- 
posus. We never obtained it at low water 
on the rocks, but dredged it frequently at 
depths of 5 to 16 fathoms. 
Crobrella oculata (Linck). 
Firth of Forth (UB.); Firth of Forth 
CE. B.): 
The Cribella oculata of Forbes. It is a 
not uncommon species. We have found 
it among rocks at low water at Aberdour 
and near Newhaven, and have dredged it 
on the oyster banks and elsewhere at 
greater depths. 
GONIASTERIDA. 
Hippasteria plana (Linck sp.). 
Firth of Forth (Dr Neil) ;* Firth of Forth 
(F. M. B). 
* Fleming, ‘‘ Hist. Brit. Animals,” p. 486. Edin., 1828. 
