ARCTURUS LONGICORNIS. 369 



actions of the Entomological Society/' plate ix., drawn 

 from specimens communicated by the late Dr. Johnston, 

 by whom they were captured in Berwick Bay. The 

 specimens figured by Sowerby were caught by Mr. T. 

 W. Simmons, entangled in nets, off Dysart, near Inch- 

 keith. The species was also captured by Mr. H. Goodsir 

 in the Frith of Forth, and in deep water in the German 

 Ocean, occurring more frequently than the two following 

 species; also by Dr. Clarke, off Cullercoats, on the 

 Northumberland coast : a colony of young animals 

 was taken, attaching themselves to the spines of 

 Echinus spherus, in the Channel, off Plymouth, by 

 ourselves (Dublin Nat. Hist. Rev., October, 1857, 

 p. 2^9). 



Sir J. G. Dalyell, who kept some of these animals for 

 some time alive, gives the following particulars of their 

 habits and movements. " Its peculiar organization gives 

 it a most unusual appearance, during repose grasping the 

 slenderest twig with its six hind feet, while all the body 

 is bent back beyond the point of fixture, so that the 

 creature actually seems broken-backed. 



" Its motions are very singular, aggravated perhaps by 

 the apparently extraordinary proportions of the various 

 parts. The position, frequently assumed and long re- 

 tained, is adhering by the hind legs to any foreign 

 substance, with the head downwards.^' Sir J. Dalyell 

 " never saw any specimen attempt to swim, to which, 

 indeed, its general form is quite adverse to the suppo- 

 sition. The exuviation of a specimen took place during 

 the first week of October, when the shell was detached 

 in two portions, the posterior comprehending the six 

 hind legs. 



''The season of propagation extends from March to 

 December. Ova appeared on June 14th, [beneath the 



VOL. II. B B 



