C. PKRNY8. Coropliiitm longicorne, 

 D SAND-SCREW. Sulwior aren&rius 



A. SANU-HOPl'ER. TMtrus saltator. 

 B. KROYER'S SAND-SCREW. Kroyera arenariit. 



bitten to rags when she took it up. It is very fond of worms, will eat any kind of carrion, 

 and sometimes, when pressed by hunger, has no scruple in eating its own kind. It has 

 many enemies, as is sure to be the case when a little creature is produced in absolute 

 clouds, when it is quite harmless, easily obtained, and excellent food. Sea-birds feed 

 largely upon the Sand-hoppers, and many land-birds are in the habit of passing much of 

 their time upon the shore, and eating their fill of these Crustacea. The green crab is a 

 terrible enemy to the Sand-hopper, even running it down in fair chase, as I have witnessed, 

 and displaying wonderful ingenuity in pouncing upon the active little creature just as it 

 descends from its leap. Even a little beetle, not a quarter its size, feeds upon the Sand- 

 hopper, instinctively attacking it from below, where it is comparatively undefended by 

 its shelly coat. Sometimes three or four beetles will unite in their attacks upon a single 

 Sand- hopper. The technical name of this beetle is Cillenum laterals. 



The SHORE-HOPPER (Orchestia Uttorea) is also plentiful on sandy coasts, preferring 

 those where the sand is sprinkled with rocks. It may be known from the sand-hopper 

 by its more compressed body, the partly clawed character of the two first pair of legs, and 

 the comparatively small size of the first pair. Though it hops on the sand, like the 

 preceding species, and has many similar habits, it is seldom found occupying the same 

 locality, the sand-hopper taking to one part of the coast and the Shore-hopper to 

 another. 



ON reference to the illustration, a strange-looking creature will be seen occupying the 

 lower left-hand corner. This is the common SAND-SCREW, an example of the next family. 

 In these creatures the antennae end in a lash-like point, called appropriately the flagellum, 

 or little whip. The Sand-screw is so called from the odd movements which it makes when 

 laid upon dry sand, wriggling along while lying on its side, and displaying an awkward- 

 ness in this respect which contrasts greatly with the wonderful power and freedom with 

 which it can force its way through the wet sand. In the course of its burrowings, it 

 makes many tortuous tracks in the sand, that are generally taken for the trace of some 

 worm's passage. 



