Mr. Garner on the Nervous System of Molluscous Animals. 501 



haps bearing a resemblance to a spine. These two distant fasciae offer but a 

 poor resemblance to the spinal chord of many fishes : but in reality some of 

 them, as Lophius, Tetraodon and Petromyzon, appear (from the description of 

 authors*) to have that organ scarcely better developed ; and a disjoined 

 state is shown to be the normal condition of this organ in its first stage of 

 development. 



In concluding this paper, the author is conscious how much must be dry 

 and uninteresting to many. As, however, he believes there are some new facts 

 in it which may assist future inquirers, who may endeavour to show there is 

 some meaning and method in these parts, and as he thinks he has proved the 

 opposite to what another author-|- on the nervous system afl5rms of these 

 organs in the Mollusca, viz. that they ought in every respect to be considered 

 below those of insects, he will conclude by claiming the indulgence to which 

 the difficulty of the subject entitles him. 



* Des Moulins, Systems Nerveux. Arsaky, De Piscium Cerebro. 

 t Serres, Anat. Comp. du Cerveau. 



