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, 
pe 229). 
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. 
“Tts 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 aspecimen 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. BB 
