144 SAGARTIAD^E. 



Since the preceding article was in type, I have received 

 the little Corklet above described ; which differs so greatly 

 from the others, that I must either regard it as specifically 

 distinct, or else consider all three as constituting a single 

 species, subject to an unusual amount of variation. I have 

 no right to assume the latter conclusion, and therefore 

 prefer the former. 



The only specimen that I have seen was sent me by the 

 kindness of Mr. Walter Gregor, of Macduff, near Banff, 

 who obtained it, in October, from deep water, adhering to 

 an old shell of Cyprina Islandica. " When put into a 

 basin of water," observes its discoverer, " it lengthened 

 itself to a great extent without throwing out its tentacles. 

 Before doing so, it assumed a globose form, and expanded 

 very slowly, withdrawing its tentacles on the least agitation 

 of the water." When it came into my own possession, it 

 adhered very readily, and expanded with great freedom ; 

 feeding eagerly on raw meat. The epidermis, which is 

 very delicate, can be detached in shreads without difficulty : 

 it holds minute atoms of sand in its substance. 



It is a brilliant little species, and I have named it from 

 its beauty of coloration. 



The only recognised locality is — Banff, W. O. 



PICTA. 

 gausapata. 

 murocincta. 



