am 



Fur tifier Remarks on 



tennae-like bodies being about the same length. Its structure 

 appeared at first sight to be very simple. At one extremity 



projected two bodies, like antennas ,* and betwixt these there 

 was a short conical body protruded a little distance. Just 

 beneath this was a beautiful circular collar, set round with 

 two rows of small round substances, which, from their clear- 

 ness and brilliancy, appeared like a rich necklace of the finest 

 pearls ; and in the centre of this was situated an elongated 

 cylindrical body, which appeared to terminate in a spiral tube, 

 running through the whole length of the animal, but dividing 

 before it reached the opposite extremity, into two smaller 

 ones, through which the fluids were to be seen in a constant 

 vermicular motion. Two minute feathery filaments were 

 attached to the cylindrical body, and were also in constant 

 motion (branchiae ?). Through the body ran several fine hair- 

 like tubes, one of which became of much larger diameter as it 

 descended. A number of flat zones or belts, quite transparent, 

 encircled the animal. It darted through the water pretty 

 rapidly, and, though it moved freely in either direction of its 

 extremities, its general motion was what at first sight ap- 

 peared to be retrograde, dragging the antennae-like bodies 

 after it. Near to the extremity to which these were attached 

 were situated the chief apparatus, resembling viscera, and a 

 retrograde motion is not a very rare thing to be met with ; 

 but it was at the opposite or blunt extremity that an aperture 

 existed, which was evidently the mouth. This aperture was 

 of considerable dimensions, and the lips were curved, and 

 almost constantly in motion, opening and shutting ; at which 

 times it caused a strong circular motion, or wliirlpool, in the 



