SEBIALARIA. 367 



a notion by only opening his eyes, and by observing their beauties, and ex- 

 periencing their utility, might praise his Maker for them ; but also filled 

 the deep with inhabitants, and ornamented it with animals, which appearing 

 to vegetate and blossom lite plants, his curiosity being excited, he might 

 also study the inhabitants of the water, and glorify his Maker for the creation 

 of them." Kirby's Bridgewater Treatise. 



Genus XXIII. SEBIALABIA, Lamarck. 



Gen. CJiar. Polypidom confervoid, horny, the shoots slender, 

 filiform, fistular and branched ; cells tubulous, uniserial and uni- 

 lateral, disposed in close parallel companies at stated intervals. 

 Polypes ascidian. Dr. Johnston. 



1. SERIALARIALENDIGERA, Nit Coralline. (Pl.XIX.fig.76.) 

 Hab. On seaweeds of various kinds, though, like many 

 other corallines, partial to Halidrys. 



It is common on many of the shores of England and 

 Ireland, and though we have not found it on our western 

 shores, it has been got in abundance in the Firth of Forth, 

 by D. L., jun., and others. It has been called the Nit Co- 

 ralline, and when we look at it with the naked eye we are 

 reminded of what we have seen on the heads of neglected 

 children; but we have only to apply the lens, and our 

 thoughts are immediately turned away from filth, to the 

 groves of Arcadia, for what had seemed a nit is seen ex- 

 actly to resemble a little Pan-pipe; so that, if we could 



