[ 4 2 5 ] 
“ Moreover the end or apex of the naked trunk 
“ is fometimes curved like a hook, and fometimes 
“ extended in a right line; both thefe motions 
“ then muft be directed by the little bone in the 
“ infide, and from this motion of this little in- 
“ ternal bone, that finus or cavity at the lower end 
“ of the trunk (thought by authors heretofore to 
“ be the mouth) feems plainly to be formed ; for 
“ fometimes it is deeper, fometimes Shallower; 
“ it is deeper while the moveable globe appears 
“ in the middle of the pinnated part of the trunk, 
“ and fhallovver when it is in the bottom of the 
“ naked trunk, at which time the bone is moil 
“ extended. 
“ Tbefinsorpinnulae have four different motions; 
“ they are moved both towards the naked flem> 
“ and towards the pinnated hem; fometimes they 
“ are drawn in very much to the belly, a little af- 
“ ter they are inclined to the back ; further, the 
“ fiefhy filaments or claws move in all directions, 
“ and the cylindrical part with the filaments is 
“ either extended out or drawn in and hid in 
“ the fins. DoCtor Bohadfch concludes this 
chapter by obferving, that there are fome varieties 
to be met with in thefe red Sea-Pens: fome, he fays, 
are paler and inclining to arofe colour, others of an 
intenfe deep red : in the firfi: kind be remarks that 
there are fewer denticles or tentacula (from whence 
the fuckers proceed) in the fins, and that thefe are 
placed in one row within half a line of one another; 
but in the latter, he fays, the tentacula are placed in 
a double row and as near as they can be together : 
this is the Pennatula of winch I have juft now given 
you his account, and which he faw alive in fea- 
water. 
