THE SCHOOL OF THE SHORE 3 



I. THE SHORE OF THE SEA (Littoral). 



II. THE OPEN SEA (Pelagic). 



III. THE DEPTHS OF THE SEA (Abyssal). 



IV. THE FRESH WATERS (Fluviatile, La- 



custrine, etc.). 



V. THE DRY LAND (Terrestrial). 

 VI. THE AIR (Aerial). 



THE SHORE OF THE SEA 



By the shore-haunt or littoral region natu- 

 ralists mean more than is suggested in ordi- 

 nary conversation when we speak of the sea- 

 shore. For then we mean the stretch between 

 tide-marks, whereas the naturalist's shore- 

 haunt is the whole of the comparatively 

 shallow, well-lighted, seaweed-growing area 

 round the margin of a continent, or of an 

 island that was once part of a continent. 

 There are places where there is practically no 

 shore; for instance round an oceanic island 

 that has been formed by corals growing on the 

 shoulders of a submarine volcano. In such a 

 place a stone thrown out from the land will 

 drop kerblunklty blink into really deep 

 water. And there are other places where the 

 shore goes out and out for many miles; for 



