£ 4 2 4 3 
part of the fuckers are in the fame manner, only 
with this difference, their outward fkins may be 
fofter. 
<( Both the fins and fuckers are hollow, fo that 
the cavity of the fuckers may communicate with 
the fins, as their cavity does with the trunk. 
<( We now come to the appearance which this 
animal makes when alive in fea-water. 
(t The trunk then was contracted circularly at 
the bottom of the naked part of the ftem, and 
by this contraction formed a zone of the mod; 
intenfe purple, which moved upwards and 
downwards luccefiively : When it moved up- 
wards through the length of the pinnated trunk, 
it there became paler, and at length terminated 
at the top : the motion being fcarce finifhed, a 
like zone appeared at the end of the naked trunk, 
which finifhed its motion in the fame manner 
as the former. 
“ When this zone becomes very much con- 
ftriCted on every fide, the trunk above it fwells 
and acquires the form of an onion; and then 
it appears, as if a comprefifed globe moved along 
through the whole fpace of the trunk; thiscon- 
ilriCtion of the trunk gives that fine red colour 
to the zone ; for when the fkin of the trunk 
is outwardly full of purple papillae, the interme- 
diate fpaces are of a whitifh colour. In this 
conftriCtion then of the fkin the intermediate 
fpaces are obliterated and the papillae are 
brought nearer together; confequently only the 
purple colour prefents itfelf to the eyes and ap- 
pears more bright. 
<( More 
