fimbriated with numerous roundilh, fmooth, ap¬ 
proximated, blue fcallops : the head gradually 
thickens as it approaches toward the centre, where 
it is very thick: the body or Item, which defcends 
from the head or pileus, is very large and thick, and 
is of a tetragonal form, fmooth, attenuated towards 
the extremity, and furniflied at its origin or upper 
part with four large, femi-oval, lateral windows or 
openings, each of which has a fmooth and large lobe 
above, and a fmaller oppolite one below. From the 
lower part of the Item or body proceed eight large, 
equal, fubcylindric, pendent branches or arms, 
which are fmooth in front and on the fides, but are 
always crifped or wrinkled behind : there are alfo 
fixteen appendices, of a moderate lize, and of a 
fubtrigonal form, hanging loofe, and conftituting 
as it were a kind of crown round the extremity of 
the body : thefe parts are bifid in front, and termi¬ 
nated on the upper fide by a flat, thickly-wrinkled 
furface; they arife from the beginning of each 
branch, one on each fide. 
The branches end in as many large, pendent, 
equal, fubpyramidal branchiae, with their two ex¬ 
terior fides very prominent, and terminating in a 
flat thickly-wrinkled furface: on their hinder or 
inner fide lefs prominent, rugofe, and continued 
into the plicae of the branches : thefe branchiae end 
in eight oblong, fubtrigonal, pendent, large, thick, 
fmooth bodies, terminating in three flat, acute, mem¬ 
branaceous pieces, and hanging at fmall diftances 
from each other. Within each of the windows or 
open- 
