60 GAMMARIM. 



impinges against the two small teeth at the base of 

 the palm. The animal, in other respects, closely re- 

 sembles M. monoculoides, except that the terminal scale 

 of the tail is more pointed. The colour of the animal, 

 when alive, is yellowish, or pale flesh-colour, several parts 

 of the body and coxae marked with faint blotches of 

 light rose, or pink. The structure of the integument is 

 very free from any decided markings ; but the surface is 

 in different parts furnished with very minute cilia, which 

 are nowhere thickly planted. 



We have received specimens of this species from the 

 coast of Northumberland, from Mr. Joshua Alder; also 

 from Banff, Mr. Edward; and from Macduff, from Mr. 

 Gregor ; we have found it ourselves amongst some trawl 

 refuse brought to us from near the Eddystone Light- 

 house. 



We have also received a specimen, which we consider 

 to be only a variety of this species, from the coast of 

 Piedmont, collected by Mr. Gwynn Jeffreys : it varies 

 from the type in having the palm of the second pair 

 of legs somewhat less than the entire length of the hand. 

 This specimen was taken upon the shore, whereas all 

 those recorded as British have never been taken in 

 less than ten fathoms of water a circumstance not of 

 much importance in itself, but as adding to the testimony 

 of the late Professor Edward Forbes, that species taken 

 in the deep sea in northern latitudes, when they exist 

 near the equator, inhabit shallow water. 



