162 HISTORY OF BRITISH CRUSTACEA. 



to make signs of their happiness, they could not have clone 

 it more intelligibly. Suppose then, what I have no doubt 

 of, each individual of this number to be in a state of posi- 

 tive enjoyment, what a sum, collectively, of gratification and 

 pleasure have we here before our view !" 



Mr. Halliday has observed* a small beetle, Cillenum 

 laterale, feeding on this Sand-hopper. It seizes them by 

 the soft parts of the under side, and in this way, though the 

 beetle be very small, it is able singly to master game many 

 times its own bulk. Sometimes three or four beetles may 

 be found together attacking a Talitrus of the largest size. 



Gen. 59. ORCHESTIA, Leach. 



Pirst and second pair of feet subcheliform ; upper an- 

 tennae shorter than the two basal joints of the lower ones. 

 Jaw-feet blunt at the tip. First pair of legs much smaller 

 than second pair, simple in neither sex. 



Orchestia littorea, Leach. S/t ore-jumper. (Plate X. 

 fig. l.t) — When alive, yellowish-brown; the body smooth, 



* Ent. Alag. iv. 252. 



t We are indebted to the kindness of Mr. Spehce Bate for the original 

 drawings of Plate X. 



