194 HISTORY OF BRITISH CRUSTACEA. 



Gordon). Dr. Johnston* remarks that, "in summer it 

 crawls about the muddy shores ; but in autumn and winter 

 it lurks in cylindrical holes which it makes in the clay near 

 high-water mark. These holes exactly resemble those that are 

 made by a worm j they are about two inches in depth, per- 

 pendicular to the surface, and nearly parallel to each other. 

 As great numbers are bored close together, the clay appears 

 as thoroughly drilled as does a piece of wood that has been 

 eaten with the maggot of the wood-beetles." 



The habits of the Corophium longicome have been studied 

 by M. D'Orbigny, of Rochelle,t who observed them in the 

 Bay of I/Aiguilion, near that place, where they are called 

 Pernys. During the winter he believes that they retire to 

 the deep sea, as they do not begin to appear till the month 

 of May, when they are found living in holes in the mud, 

 and disappear at the end of September. The roughness of 

 the waves causes the sand and shingle of shallow parts of 

 the bay to collect in elevated ridges j the depressions between 

 these and the ridges are tenanted by various Annelids of 

 the genera Nereis, Amphinome, Arenicola, etc., which, when 

 the sea comes up, show themselves at the holes of their 



* History of Berwickshire Naturalists' Club, 1842-1849, p. 78. 

 f Letter to Latreille, Enc. Meth. x. 164, 165 (Podocere). 



