( 170 ) 
ed the Fun£lion of the Mouth ^ the fecond of the 
j 4 nus \ the third of the F ulva. This lafl Hole is feen 
under the Belly , about 1 1 Inch from the Mouth. 
( Fig, I. c. 
The" membranous Skin was marked with annular 
Fibres, and 7 or 8 Chefnut-coloured Lines {Fig. i. d.) 
running the whole Length of’ the Worm. The Skin 
being cut, a limpid Humour iifued forth, and then ap- 
peared the tranfverfal Fibres interlaid on every Side 
with the Fifcera^ and are all round about inferted 
into the Skin in the Interftices of the FeJ/cles (of 
^hich' hereafter) and at the fame Time the Fifcera 
appeared, which the foie Parts deftin’d for Nutrition 
and Generation feem to make up. 
As to the firft, or alimentary Paflage, it is compo- 
fed of two Canals, one whereof (Fig, 2. h. ) which 
begins at the Mouth, and is about z Inches long, 
fmooth, flefhy, whitifh, and endow’d with thick Coats, 
ferves for receiving Nourifhment. As this Dud pro- 
ceeds with equal Thicknefs, it is once refleded and 
retorted before it enters the other ( Fig. z. c^c^c^d. ) 
which is of a dark brown Colour, much broader and 
tenderer than the firft, flatted, membranous, covered 
with very fine Coats, wrinkled like a Scathing Cloth, 
then runs into tranfverfal and winding Sinews, and 
extends in a ftrait Line to the Anus, The inner Coat 
of this Canal feemed fomewhat rough, and as it were 
ftrew’d with Duft. The contained Liquor was per- 
fedly fluid, and of a faint footy Colour. 
But the Organs of Generation we found thus. 
Near the Anus was fix’d to the Skin, the End of a 
whitifli tender Veffel, which thence proceeded ftrait 
to the Beginning of the alimentary Canal, where re- 
•fleding 
